Jenkins SAML Plugin <4.583 Replay Attack via Missing Replay Cache
CVE-2025-64131 Published on October 29, 2025
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.
Vulnerability Analysis
CVE-2025-64131 can be exploited with network access, requires user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
Authentication Bypass by Capture-replay
A capture-replay flaw exists when the design of the software makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes). Capture-replay attacks are common and can be difficult to defeat without cryptography. They are a subset of network injection attacks that rely on observing previously-sent valid commands, then changing them slightly if necessary and resending the same commands to the server.
Products Associated with CVE-2025-64131
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Affected Versions
Jenkins Project Jenkins SAML Plugin:- Before and including 4.583.vc68232f7018a_ is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.