SB2025103017 - Authentication Bypass by Capture-replay in Jenkins SAML plugin
Published: October 30, 2025
Security Bulletin ID
SB2025103017
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Authentication Bypass by Capture-replay (CVE-ID: CVE-2025-64131)
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to authentication bypass by capture-replay. A remote attacker can obtain information about the SAML authentication flow between a user’s web browser and Jenkins and gain unauthorized access on the target system.
Remediation
Install update from vendor's website.