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SECURITY.md

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Security Policy

Supported Versions

We provide security updates for the two most recent minor versions released on the stable channel.

For example, if stable-2.7.1 is the most recent stable versions, we will address security updates for stable-2.6.0 and later. Once stable-2.8.0 is released, we will no longer provide updates for stable-2.6.x releases.

Reporting a Vulnerability

To report a security problem in Linkerd, please contact the Security Alert Team: cncf-linkerd-security-alert@lists.cncf.io.

The team will help diagnose the severity of the issue and determine how to address the issue. Issues deemed to be non-critical will be filed as GitHub issues. Critical issues will receive immediate attention and be fixed as quickly as possible.

Security Advisories

When serious security problems in Linkerd are discovered and corrected, we issue a security advisory, describing the problem and containing a pointer to the fix. These are announced to our cncf-linkerd-announce mailing list as well as to various other mailing lists and websites.

Security issues are fixed as soon as possible, and the fixes are propagated to the stable branches as fast as possible. However, when a vulnerability is found during a code audit, or when several other issues are likely to be spotted and fixed in the near future, the security team may delay the release of a Security Advisory, so that one unique, comprehensive Security Advisory covering several vulnerabilities can be issued. Communication with vendors and other distributions shipping the same code may also cause these delays.

Security Audits

Unredacted security audits are published in the audits/ subdirectory.