Vulnerability · Published Sep 2, 2026 · Assigned by jenkins
CVE-2026-84664
Medium 5.4
In plain English
A medium-severity security flaw in Jenkins GitLab 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 0.1% (higher than 3% of all known vulnerabilities).
Severity (CVSS 3.1)5.4Medium
Exploit odds (30 days)0.1%top 96.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Jenkins GitLab Plugin 1.9.16 and earlier allows overwriting the global GitLab connection configuration through Stapler data binding, allowing attackers to connect to an attacker-specified URL using GitLab API tokens already configured by administrators.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Jenkins Project | Jenkins GitLab Plugin | 0 – through 1.9.16 |
Weakness: CWE-494, CWE-471 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
References
- Jenkins Security Advisory 2026-09-02 vendor-advisory