CVE-2026-84664

Medium

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.

SeverityMedium

CVSS5.4

Exploit probability—

ProductJenkins GitLab Plugin

PublishedSep 2, 2026

First seenSep 2, 2026

Weakness typeCWE-494CWE-494 CWE-471CWE-471

How to fix

Vendor advisories

jenkins.io/security/advisory/2026-09-02/#SECURITY-4097

Affected products

Product	Affected versions	Fixed in
Jenkins Project Jenkins GitLab Plugin	v ≤ 1.9.16	—

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