Vulnerability · Published Sep 2, 2026 · Assigned by jenkins
CVE-2026-84668
High 8.8
In plain English
A high-severity improper access control in Jenkins SAML Plugin from Jenkins Project. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.4%top 63.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Jenkins SAML Plugin 4.618.v441a_27fa_46d2 and earlier allows overwriting the SAML identity provider metadata file through Stapler data binding, allowing attackers to replace it with attacker-controlled content and authenticate as any user.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Jenkins Project | Jenkins SAML Plugin | 0 – through 4.618.v441a_27fa_46d2 |
Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- Jenkins Security Advisory 2026-09-02 vendor-advisory