Cross-Site Request Forgery (CSRF) in GitLab Enterprise Edition and Gitlab Community Edition - CVE-2026-3857
Published: March 25, 2026
Vulnerability identifier: #VU124599
CSH Severity: Medium
CVSS v4: 8.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-3857
CWE-ID: CWE-352
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary GraphQL mutations on behalf of authenticated users.
The vulnerability exists due to insufficient CSRF protection in the GLQL API when handling requests. A remote attacker can trick an authenticated user into clicking a malicious link to execute arbitrary GraphQL mutations on behalf of the user.
Affected software
GitLab Enterprise Edition
Gitlab Community Edition
Gitlab Community Edition
How to mitigate CVE-2026-3857
Install security update from vendor's website.
GitLab Enterprise Edition - addressed in versions 18.8.7, 18.9.3, 18.10.1
Gitlab Community Edition - addressed in versions 18.8.7, 18.9.3, 18.10.1
Gitlab Community Edition - addressed in versions 18.8.7, 18.9.3, 18.10.1