Improper Access Control in Gitlab Community Edition and GitLab Enterprise Edition - CVE-2026-2726

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Main Vulnerability Database Vulnerabilities #VU124607

Improper Access Control in Gitlab Community Edition and GitLab Enterprise Edition - CVE-2026-2726

Published: March 25, 2026 / Updated: March 26, 2026


Vulnerability identifier: #VU124607
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-2726
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote user to perform unauthorized actions on merge requests in other projects.

The vulnerability exists due to improper access control during cross-repository operations in merge requests when handling requests. A remote user can send a specially crafted request to perform unauthorized actions on merge requests in other projects.


Affected software

Gitlab Community Edition
GitLab Enterprise Edition

How to mitigate CVE-2026-2726

Install security update from vendor's website.

Gitlab Community Edition - addressed in versions 18.8.7, 18.9.3, 18.10.1
GitLab Enterprise Edition - addressed in versions 18.8.7, 18.9.3, 18.10.1

External References

Related Security Bulletins