diff --git a/cas/src/main/java/org/springframework/security/cas/authentication/CasAuthenticationProvider.java b/cas/src/main/java/org/springframework/security/cas/authentication/CasAuthenticationProvider.java
index 5b390fe19be..cdf020f0d03 100644
--- a/cas/src/main/java/org/springframework/security/cas/authentication/CasAuthenticationProvider.java
+++ b/cas/src/main/java/org/springframework/security/cas/authentication/CasAuthenticationProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2004, 2005, 2006 Acegi Technology Pty Limited
+ * Copyright 2004, 2005, 2006, 2024 Acegi Technology Pty Limited
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -56,6 +56,7 @@
  *
  * @author Ben Alex
  * @author Scott Battaglia
+ * @author Kim Youngwoong
  */
 public class CasAuthenticationProvider implements AuthenticationProvider, InitializingBean, MessageSourceAware {
 
@@ -63,7 +64,7 @@ public class CasAuthenticationProvider implements AuthenticationProvider, Initia
 
 	private AuthenticationUserDetailsService<CasAssertionAuthenticationToken> authenticationUserDetailsService;
 
-	private final UserDetailsChecker userDetailsChecker = new AccountStatusUserDetailsChecker();
+	private UserDetailsChecker userDetailsChecker = new AccountStatusUserDetailsChecker();
 
 	protected MessageSourceAccessor messages = SpringSecurityMessageSource.getAccessor();
 
@@ -187,6 +188,16 @@ public void setAuthenticationUserDetailsService(
 		this.authenticationUserDetailsService = authenticationUserDetailsService;
 	}
 
+	/**
+	 * Sets the UserDetailsChecker to be used for checking the status of retrieved user details.
+	 * This allows customization of the UserDetailsChecker implementation.
+	 *
+	 * @param userDetailsChecker the UserDetailsChecker to be set
+	 */
+	public void setUserDetailsChecker(UserDetailsChecker userDetailsChecker) {
+		this.userDetailsChecker = userDetailsChecker;
+	}
+
 	public void setServiceProperties(final ServiceProperties serviceProperties) {
 		this.serviceProperties = serviceProperties;
 	}