CVE-2025-64131 Jenkins SAML Plugin does not implement a replay cache
Attackers can replay SAML authentication requests to bypass authentication and access Jenkins as another user.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2025-64131?
CVE-2025-64131 is a high-severity authentication bypass vulnerability in Jenkins SAML Plugin, published on 29 Oct 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Jenkins SAML Plugin 4.583.vc68232f7018a_ and earlier does not implement a replay cache, allowing attackers able to obtain information about the SAML authentication flow between a user's web browser and Jenkins to replay those requests, authenticating to Jenkins as that user.
Weakness: CWE-294
Which versions are affected by CVE-2025-64131?
2 open source packages ship an affected version, including org.jenkins-ci.plugins:saml. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.jenkins-ci.plugins:saml Maven | All versions | 4.583.585.v22ccc1139f55 |
org.jenkins-ci.plugins:saml Maven | All versions | 4.583.585.v22ccc1139f55 |
Products include Jenkins Saml.
How do I fix CVE-2025-64131?
Upgrade org.jenkins-ci.plugins:saml to 4.583.585.v22ccc1139f55 or later.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2025-64131 being exploited?
There is no known exploitation of CVE-2025-64131 in the wild and no public exploit code.
Other vulnerabilities in Jenkins SAML Plugin
Sources
Also known as GHSA-j7r7-7qmf-xq87.