diff --git a/CHANGELOG.next.asciidoc b/CHANGELOG.next.asciidoc
index a7a08dad768..0cfbb2df0dc 100644
--- a/CHANGELOG.next.asciidoc
+++ b/CHANGELOG.next.asciidoc
@@ -301,6 +301,7 @@ https://github.com/elastic/beats/compare/v7.0.0-alpha2...master[Check the HEAD d
 - Update to ECS 8.0 fields. {pull}28620[28620]
 - Add http.pprof.enabled option to libbeat to allow http/pprof endpoints on the socket that libbeat creates for metrics. {issue}21965[21965]
 - Support custom analyzers in fields.yml. {issue}28540[28540] {pull}28926[28926]
+- Support self signed certificates on outputs {pull}29229[29229]
 
 *Auditbeat*
 
diff --git a/auditbeat/auditbeat.reference.yml b/auditbeat/auditbeat.reference.yml
index fc685b6c231..544cd80ade2 100644
--- a/auditbeat/auditbeat.reference.yml
+++ b/auditbeat/auditbeat.reference.yml
@@ -513,6 +513,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
@@ -645,6 +652,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # The number of times to retry publishing an event after a publishing failure.
   # After the specified number of retries, the events are typically dropped.
   # Some Beats, such as Filebeat and Winlogbeat, ignore the max_retries setting
@@ -846,6 +860,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
@@ -1010,6 +1031,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
 
 # -------------------------------- File Output ---------------------------------
 #output.file:
@@ -1297,6 +1325,13 @@ setup.kibana:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
 
 # ================================== Logging ===================================
 
@@ -1495,6 +1530,13 @@ logging.files:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
diff --git a/filebeat/filebeat.reference.yml b/filebeat/filebeat.reference.yml
index a8217924d4d..b63760c63dd 100644
--- a/filebeat/filebeat.reference.yml
+++ b/filebeat/filebeat.reference.yml
@@ -1446,6 +1446,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
@@ -1578,6 +1585,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # The number of times to retry publishing an event after a publishing failure.
   # After the specified number of retries, the events are typically dropped.
   # Some Beats, such as Filebeat and Winlogbeat, ignore the max_retries setting
@@ -1779,6 +1793,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
@@ -1943,6 +1964,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
 
 # -------------------------------- File Output ---------------------------------
 #output.file:
@@ -2230,6 +2258,13 @@ setup.kibana:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
 
 # ================================== Logging ===================================
 
@@ -2428,6 +2463,13 @@ logging.files:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
diff --git a/heartbeat/heartbeat.reference.yml b/heartbeat/heartbeat.reference.yml
index c3ae5c01214..76dcc7758b9 100644
--- a/heartbeat/heartbeat.reference.yml
+++ b/heartbeat/heartbeat.reference.yml
@@ -659,6 +659,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
@@ -791,6 +798,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # The number of times to retry publishing an event after a publishing failure.
   # After the specified number of retries, the events are typically dropped.
   # Some Beats, such as Filebeat and Winlogbeat, ignore the max_retries setting
@@ -992,6 +1006,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
@@ -1156,6 +1177,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
 
 # -------------------------------- File Output ---------------------------------
 #output.file:
@@ -1443,6 +1471,13 @@ setup.kibana:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
 
 # ================================== Logging ===================================
 
@@ -1641,6 +1676,13 @@ logging.files:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
diff --git a/libbeat/_meta/config/ssl.reference.yml.tmpl b/libbeat/_meta/config/ssl.reference.yml.tmpl
index 65920fb646f..e6928c894fa 100644
--- a/libbeat/_meta/config/ssl.reference.yml.tmpl
+++ b/libbeat/_meta/config/ssl.reference.yml.tmpl
@@ -50,3 +50,10 @@
 #
 # The pin is a base64 encoded string of the SHA-256 fingerprint.
 #ssl.ca_sha256: ""
+
+# A root CA HEX encoded fingerprint. During the SSL handshake if the
+# fingerprint matches the root CA certificate, it will be added to
+# the provided list of root CAs (`certificate_authorities`), if the
+# list is empty or not defined, the matching certificate will be the
+# only one in the list. Then the normal SSL validation happens.
+#ssl.ca_trusted_fingerprint: ""
diff --git a/libbeat/common/transport/tlscommon/config.go b/libbeat/common/transport/tlscommon/config.go
index 41d1ad6532c..0bb2e35c20c 100644
--- a/libbeat/common/transport/tlscommon/config.go
+++ b/libbeat/common/transport/tlscommon/config.go
@@ -30,15 +30,16 @@ var warnOnce sync.Once
 
 // Config defines the user configurable options in the yaml file.
 type Config struct {
-	Enabled          *bool                   `config:"enabled" yaml:"enabled,omitempty"`
-	VerificationMode TLSVerificationMode     `config:"verification_mode" yaml:"verification_mode"` // one of 'none', 'full'
-	Versions         []TLSVersion            `config:"supported_protocols" yaml:"supported_protocols,omitempty"`
-	CipherSuites     []CipherSuite           `config:"cipher_suites" yaml:"cipher_suites,omitempty"`
-	CAs              []string                `config:"certificate_authorities" yaml:"certificate_authorities,omitempty"`
-	Certificate      CertificateConfig       `config:",inline" yaml:",inline"`
-	CurveTypes       []tlsCurveType          `config:"curve_types" yaml:"curve_types,omitempty"`
-	Renegotiation    TlsRenegotiationSupport `config:"renegotiation" yaml:"renegotiation"`
-	CASha256         []string                `config:"ca_sha256" yaml:"ca_sha256,omitempty"`
+	Enabled              *bool                   `config:"enabled" yaml:"enabled,omitempty"`
+	VerificationMode     TLSVerificationMode     `config:"verification_mode" yaml:"verification_mode"` // one of 'none', 'full'
+	Versions             []TLSVersion            `config:"supported_protocols" yaml:"supported_protocols,omitempty"`
+	CipherSuites         []CipherSuite           `config:"cipher_suites" yaml:"cipher_suites,omitempty"`
+	CAs                  []string                `config:"certificate_authorities" yaml:"certificate_authorities,omitempty"`
+	Certificate          CertificateConfig       `config:",inline" yaml:",inline"`
+	CurveTypes           []tlsCurveType          `config:"curve_types" yaml:"curve_types,omitempty"`
+	Renegotiation        TlsRenegotiationSupport `config:"renegotiation" yaml:"renegotiation"`
+	CASha256             []string                `config:"ca_sha256" yaml:"ca_sha256,omitempty"`
+	CATrustedFingerprint string                  `config:"ca_trusted_fingerprint" yaml:"ca_trusted_fingerprint,omitempty"`
 }
 
 // LoadTLSConfig will load a certificate from config with all TLS based keys
@@ -82,14 +83,15 @@ func LoadTLSConfig(config *Config) (*TLSConfig, error) {
 
 	// return config if no error occurred
 	return &TLSConfig{
-		Versions:         config.Versions,
-		Verification:     config.VerificationMode,
-		Certificates:     certs,
-		RootCAs:          cas,
-		CipherSuites:     config.CipherSuites,
-		CurvePreferences: curves,
-		Renegotiation:    tls.RenegotiationSupport(config.Renegotiation),
-		CASha256:         config.CASha256,
+		Versions:             config.Versions,
+		Verification:         config.VerificationMode,
+		Certificates:         certs,
+		RootCAs:              cas,
+		CipherSuites:         config.CipherSuites,
+		CurvePreferences:     curves,
+		Renegotiation:        tls.RenegotiationSupport(config.Renegotiation),
+		CASha256:             config.CASha256,
+		CATrustedFingerprint: config.CATrustedFingerprint,
 	}, nil
 }
 
diff --git a/libbeat/common/transport/tlscommon/tls_config.go b/libbeat/common/transport/tlscommon/tls_config.go
index 77c60f951f8..6f097876ec7 100644
--- a/libbeat/common/transport/tlscommon/tls_config.go
+++ b/libbeat/common/transport/tlscommon/tls_config.go
@@ -18,8 +18,11 @@
 package tlscommon
 
 import (
+	"bytes"
+	"crypto/sha256"
 	"crypto/tls"
 	"crypto/x509"
+	"encoding/hex"
 	"fmt"
 	"net"
 	"time"
@@ -74,6 +77,10 @@ type TLSConfig struct {
 	// the server certificate.
 	CASha256 []string
 
+	// CATrustedFingerprint is the HEX encoded fingerprint of a CA certificate. If present in the chain
+	// this certificate will be added to the list of trusted CAs (RootCAs) during the handshake.
+	CATrustedFingerprint string `config:"ca_trusted_fingerprint" yaml:"ca_trusted_fingerprint,omitempty"`
+
 	// time returns the current time as the number of seconds since the epoch.
 	// If time is nil, TLS uses time.Now.
 	time func() time.Time
@@ -151,10 +158,42 @@ func (c *TLSConfig) BuildServerConfig(host string) *tls.Config {
 	return config
 }
 
+func trustRootCA(cfg *TLSConfig, peerCerts []*x509.Certificate) error {
+	fingerprint, err := hex.DecodeString(cfg.CATrustedFingerprint)
+	if err != nil {
+		return fmt.Errorf("decode fingerprint: %w", err)
+	}
+
+	for _, cert := range peerCerts {
+		// Compute digest for each certificate.
+		digest := sha256.Sum256(cert.Raw)
+
+		if bytes.Equal(digest[0:], fingerprint) {
+			// Make sure the fingerprint matches a CA certificate
+			if cert.IsCA {
+				if cfg.RootCAs == nil {
+					cfg.RootCAs = x509.NewCertPool()
+				}
+
+				cfg.RootCAs.AddCert(cert)
+				return nil
+			}
+		}
+	}
+
+	logp.NewLogger("tls").Warn("no CA certificate matching the fingerprint")
+	return nil
+}
+
 func makeVerifyConnection(cfg *TLSConfig) func(tls.ConnectionState) error {
 	switch cfg.Verification {
 	case VerifyFull:
 		return func(cs tls.ConnectionState) error {
+			if cfg.CATrustedFingerprint != "" {
+				if err := trustRootCA(cfg, cs.PeerCertificates); err != nil {
+					return err
+				}
+			}
 			// On the client side, PeerCertificates can't be empty.
 			if len(cs.PeerCertificates) == 0 {
 				return MissingPeerCertificate
@@ -172,6 +211,11 @@ func makeVerifyConnection(cfg *TLSConfig) func(tls.ConnectionState) error {
 		}
 	case VerifyCertificate:
 		return func(cs tls.ConnectionState) error {
+			if cfg.CATrustedFingerprint != "" {
+				if err := trustRootCA(cfg, cs.PeerCertificates); err != nil {
+					return err
+				}
+			}
 			// On the client side, PeerCertificates can't be empty.
 			if len(cs.PeerCertificates) == 0 {
 				return MissingPeerCertificate
@@ -186,6 +230,11 @@ func makeVerifyConnection(cfg *TLSConfig) func(tls.ConnectionState) error {
 	case VerifyStrict:
 		if len(cfg.CASha256) > 0 {
 			return func(cs tls.ConnectionState) error {
+				if cfg.CATrustedFingerprint != "" {
+					if err := trustRootCA(cfg, cs.PeerCertificates); err != nil {
+						return err
+					}
+				}
 				return verifyCAPin(cfg.CASha256, cs.VerifiedChains)
 			}
 		}
@@ -193,7 +242,6 @@ func makeVerifyConnection(cfg *TLSConfig) func(tls.ConnectionState) error {
 	}
 
 	return nil
-
 }
 
 func makeVerifyServerConnection(cfg *TLSConfig) func(tls.ConnectionState) error {
diff --git a/libbeat/docs/shared-ssl-config.asciidoc b/libbeat/docs/shared-ssl-config.asciidoc
index 1c20e6b8565..97a2605ef4b 100644
--- a/libbeat/docs/shared-ssl-config.asciidoc
+++ b/libbeat/docs/shared-ssl-config.asciidoc
@@ -377,6 +377,15 @@ production environments is strongly discouraged.
 +
 The default value is `full`.
 
+[float]
+[[ca_trusted_fingerprint]]
+==== `ca_trusted_fingerprint`
+A HEX encoded SHA-256 of a CA certificate. If this certificate is
+present in the chain during the handshake, it will be added to the
+`certificate_authorities` list and the handshake will continue
+normaly.
+
+
 [discrete]
 [[ssl-server-config]]
 === Server configuration options
diff --git a/metricbeat/metricbeat.reference.yml b/metricbeat/metricbeat.reference.yml
index 58211bdb0b4..ff2a374ad0e 100644
--- a/metricbeat/metricbeat.reference.yml
+++ b/metricbeat/metricbeat.reference.yml
@@ -1331,6 +1331,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
@@ -1463,6 +1470,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # The number of times to retry publishing an event after a publishing failure.
   # After the specified number of retries, the events are typically dropped.
   # Some Beats, such as Filebeat and Winlogbeat, ignore the max_retries setting
@@ -1664,6 +1678,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
@@ -1828,6 +1849,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
 
 # -------------------------------- File Output ---------------------------------
 #output.file:
@@ -2115,6 +2143,13 @@ setup.kibana:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
 
 # ================================== Logging ===================================
 
@@ -2313,6 +2348,13 @@ logging.files:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
diff --git a/packetbeat/packetbeat.reference.yml b/packetbeat/packetbeat.reference.yml
index 1a51aeb6b4d..3d9d0f604bf 100644
--- a/packetbeat/packetbeat.reference.yml
+++ b/packetbeat/packetbeat.reference.yml
@@ -1008,6 +1008,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
@@ -1140,6 +1147,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # The number of times to retry publishing an event after a publishing failure.
   # After the specified number of retries, the events are typically dropped.
   # Some Beats, such as Filebeat and Winlogbeat, ignore the max_retries setting
@@ -1341,6 +1355,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
@@ -1505,6 +1526,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
 
 # -------------------------------- File Output ---------------------------------
 #output.file:
@@ -1792,6 +1820,13 @@ setup.kibana:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
 
 # ================================== Logging ===================================
 
@@ -1990,6 +2025,13 @@ logging.files:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
diff --git a/winlogbeat/winlogbeat.reference.yml b/winlogbeat/winlogbeat.reference.yml
index 17901a0b179..afa6ec97eb3 100644
--- a/winlogbeat/winlogbeat.reference.yml
+++ b/winlogbeat/winlogbeat.reference.yml
@@ -442,6 +442,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
@@ -574,6 +581,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # The number of times to retry publishing an event after a publishing failure.
   # After the specified number of retries, the events are typically dropped.
   # Some Beats, such as Filebeat and Winlogbeat, ignore the max_retries setting
@@ -775,6 +789,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
@@ -939,6 +960,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
 
 # -------------------------------- File Output ---------------------------------
 #output.file:
@@ -1226,6 +1254,13 @@ setup.kibana:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
 
 # ================================== Logging ===================================
 
@@ -1424,6 +1459,13 @@ logging.files:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
diff --git a/x-pack/auditbeat/auditbeat.reference.yml b/x-pack/auditbeat/auditbeat.reference.yml
index a83cc1742e2..5219627ac63 100644
--- a/x-pack/auditbeat/auditbeat.reference.yml
+++ b/x-pack/auditbeat/auditbeat.reference.yml
@@ -569,6 +569,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
@@ -701,6 +708,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # The number of times to retry publishing an event after a publishing failure.
   # After the specified number of retries, the events are typically dropped.
   # Some Beats, such as Filebeat and Winlogbeat, ignore the max_retries setting
@@ -902,6 +916,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
@@ -1066,6 +1087,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
 
 # -------------------------------- File Output ---------------------------------
 #output.file:
@@ -1353,6 +1381,13 @@ setup.kibana:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
 
 # ================================== Logging ===================================
 
@@ -1551,6 +1586,13 @@ logging.files:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
diff --git a/x-pack/filebeat/filebeat.reference.yml b/x-pack/filebeat/filebeat.reference.yml
index d6694e9e700..8a8fdeb360f 100644
--- a/x-pack/filebeat/filebeat.reference.yml
+++ b/x-pack/filebeat/filebeat.reference.yml
@@ -3599,6 +3599,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
@@ -3731,6 +3738,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # The number of times to retry publishing an event after a publishing failure.
   # After the specified number of retries, the events are typically dropped.
   # Some Beats, such as Filebeat and Winlogbeat, ignore the max_retries setting
@@ -3932,6 +3946,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
@@ -4096,6 +4117,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
 
 # -------------------------------- File Output ---------------------------------
 #output.file:
@@ -4383,6 +4411,13 @@ setup.kibana:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
 
 # ================================== Logging ===================================
 
@@ -4581,6 +4616,13 @@ logging.files:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
diff --git a/x-pack/functionbeat/functionbeat.reference.yml b/x-pack/functionbeat/functionbeat.reference.yml
index e4167320640..090ab1cc877 100644
--- a/x-pack/functionbeat/functionbeat.reference.yml
+++ b/x-pack/functionbeat/functionbeat.reference.yml
@@ -691,6 +691,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
@@ -823,6 +830,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # The number of times to retry publishing an event after a publishing failure.
   # After the specified number of retries, the events are typically dropped.
   # Some Beats, such as Filebeat and Winlogbeat, ignore the max_retries setting
@@ -1091,6 +1105,13 @@ setup.kibana:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
 
 # ================================== Logging ===================================
 
@@ -1289,6 +1310,13 @@ logging.files:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
diff --git a/x-pack/heartbeat/heartbeat.reference.yml b/x-pack/heartbeat/heartbeat.reference.yml
index c3ae5c01214..76dcc7758b9 100644
--- a/x-pack/heartbeat/heartbeat.reference.yml
+++ b/x-pack/heartbeat/heartbeat.reference.yml
@@ -659,6 +659,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
@@ -791,6 +798,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # The number of times to retry publishing an event after a publishing failure.
   # After the specified number of retries, the events are typically dropped.
   # Some Beats, such as Filebeat and Winlogbeat, ignore the max_retries setting
@@ -992,6 +1006,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
@@ -1156,6 +1177,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
 
 # -------------------------------- File Output ---------------------------------
 #output.file:
@@ -1443,6 +1471,13 @@ setup.kibana:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
 
 # ================================== Logging ===================================
 
@@ -1641,6 +1676,13 @@ logging.files:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
diff --git a/x-pack/metricbeat/metricbeat.reference.yml b/x-pack/metricbeat/metricbeat.reference.yml
index ca89d3692f2..8820038b1f2 100644
--- a/x-pack/metricbeat/metricbeat.reference.yml
+++ b/x-pack/metricbeat/metricbeat.reference.yml
@@ -1852,6 +1852,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
@@ -1984,6 +1991,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # The number of times to retry publishing an event after a publishing failure.
   # After the specified number of retries, the events are typically dropped.
   # Some Beats, such as Filebeat and Winlogbeat, ignore the max_retries setting
@@ -2185,6 +2199,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
@@ -2349,6 +2370,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
 
 # -------------------------------- File Output ---------------------------------
 #output.file:
@@ -2636,6 +2664,13 @@ setup.kibana:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
 
 # ================================== Logging ===================================
 
@@ -2834,6 +2869,13 @@ logging.files:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
diff --git a/x-pack/osquerybeat/osquerybeat.reference.yml b/x-pack/osquerybeat/osquerybeat.reference.yml
index a0c021361e9..53f7f52f922 100644
--- a/x-pack/osquerybeat/osquerybeat.reference.yml
+++ b/x-pack/osquerybeat/osquerybeat.reference.yml
@@ -410,6 +410,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
@@ -542,6 +549,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # The number of times to retry publishing an event after a publishing failure.
   # After the specified number of retries, the events are typically dropped.
   # Some Beats, such as Filebeat and Winlogbeat, ignore the max_retries setting
@@ -810,6 +824,13 @@ setup.kibana:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
 
 # ================================== Logging ===================================
 
@@ -1008,6 +1029,13 @@ logging.files:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
diff --git a/x-pack/packetbeat/packetbeat.reference.yml b/x-pack/packetbeat/packetbeat.reference.yml
index 1a51aeb6b4d..3d9d0f604bf 100644
--- a/x-pack/packetbeat/packetbeat.reference.yml
+++ b/x-pack/packetbeat/packetbeat.reference.yml
@@ -1008,6 +1008,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
@@ -1140,6 +1147,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # The number of times to retry publishing an event after a publishing failure.
   # After the specified number of retries, the events are typically dropped.
   # Some Beats, such as Filebeat and Winlogbeat, ignore the max_retries setting
@@ -1341,6 +1355,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
@@ -1505,6 +1526,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
 
 # -------------------------------- File Output ---------------------------------
 #output.file:
@@ -1792,6 +1820,13 @@ setup.kibana:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
 
 # ================================== Logging ===================================
 
@@ -1990,6 +2025,13 @@ logging.files:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
diff --git a/x-pack/winlogbeat/winlogbeat.reference.yml b/x-pack/winlogbeat/winlogbeat.reference.yml
index cff71187ffb..8d9d4ef2566 100644
--- a/x-pack/winlogbeat/winlogbeat.reference.yml
+++ b/x-pack/winlogbeat/winlogbeat.reference.yml
@@ -485,6 +485,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
@@ -617,6 +624,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # The number of times to retry publishing an event after a publishing failure.
   # After the specified number of retries, the events are typically dropped.
   # Some Beats, such as Filebeat and Winlogbeat, ignore the max_retries setting
@@ -818,6 +832,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true
 
@@ -982,6 +1003,13 @@ output.elasticsearch:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
 
 # -------------------------------- File Output ---------------------------------
 #output.file:
@@ -1269,6 +1297,13 @@ setup.kibana:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
 
 # ================================== Logging ===================================
 
@@ -1467,6 +1502,13 @@ logging.files:
   # The pin is a base64 encoded string of the SHA-256 fingerprint.
   #ssl.ca_sha256: ""
 
+  # A root CA HEX encoded fingerprint. During the SSL handshake if the
+  # fingerprint matches the root CA certificate, it will be added to
+  # the provided list of root CAs (`certificate_authorities`), if the
+  # list is empty or not defined, the matching certificate will be the
+  # only one in the list. Then the normal SSL validation happens.
+  #ssl.ca_trusted_fingerprint: ""
+
   # Enable Kerberos support. Kerberos is automatically enabled if any Kerberos setting is set.
   #kerberos.enabled: true