Jenkins Google Login Plugin 1.7 and earlier uses a non-constant time comparison function when checking whether the provided and expected token are equal, potentially allowing attackers to use statistical methods to obtain a valid token.

References

• https://nvd.nist.gov/vuln/detail/CVE-2023-41936
• https://www.jenkins.io/security/advisory/2023-09-06/#SECURITY-3228
• http://www.openwall.com/lists/oss-security/2023/09/06/9
• jenkinsci/google-login-plugin@2273af0