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Vulnerability record · CVE-2025-64131 · published 29 October 2025

CVE-2025-64131: Jenkins saml authentication bypass by capture-replay vulnerability

Jenkins · Saml

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.

7.5 CVSS 3.1 High EPSS 0.44% · top 64.2% CWE-294 · Authentication bypass by capture-replay
7.5CVSS 3.1 base score
0.44%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.jenkins.io/security/advisory/2025-10-29/#SECURITY-3613 Vendor Advisory
http://www.openwall.com/lists/oss-security/2025/10/29/2 Mailing ListThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.8CVE-2021-21678Jenkins saml cross-site request forgery vulnerabilityJenkins SAML Plugin 2.0.7 and earlier allows attackers to craft URLs that would bypass the CSRF protection of any target URL in Jenkins.EPSS 0.81%5.9CVE-2018-1000602Jenkins saml vulnerabilityA session fixation vulnerability exists in Jenkins SAML Plugin 1.0.6 and earlier in SamlSecurityRealm.java that allows unauthorized attackers to impe…EPSS 0.85%9.8CVE-2023-23397Microsoft Outlook improper input validation privilege escalationCVE-2023-23397 is a critical elevation of privilege flaw in Microsoft Outlook caused by improper input validation and an authentication bypass by cap…KEVEPSS 97%analysed

Source: NIST National Vulnerability Database (record CVE-2025-64131), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.