CVE-2025-64131: Jenkins SAML Plugin · CWE-294
Affects Jenkins SAML PluginSource CVE Database V5
Not known to be exploited · CVSS 7.5 High.
Data as of 26 Oct 2026, 15:59 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 40% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 29 Oct 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Jenkins Project Jenkins SAML Plugin | Affected
| Fixed in– |
AI-suggested
- Monitor Jenkins SAML Plugin vendor announcements closely and apply security patches immediately once available to address the replay cache deficiency.
- Implement network-level protections such as TLS encryption for all SAML traffic to prevent interception and replay of authentication messages.
- Use web application firewalls (WAFs) and intrusion detection/prevention systems (IDS/IPS) to detect and block suspicious replay attempts or anomalous authentication patterns.
- Enforce strict session management policies in Jenkins, including short session lifetimes and multi-factor authentication (MFA) where possible, to reduce the impact of replayed sessions.
- Conduct regular audits of Jenkins authentication logs to identify repeated or unusual login attempts indicative of replay attacks.
- Segment Jenkins infrastructure within secure network zones to limit exposure to potential attackers capable of intercepting SAML traffic.
- Educate development and operations teams about the risks of replay attacks and encourage vigilance regarding suspicious authentication behaviors.
- Consider alternative or additional authentication mechanisms that provide replay protection until the plugin is patched.
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.