Improper access control in Gitlab Community Edition and GitLab Enterprise Edition - CVE-2026-6269

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU134376

Improper access control in Gitlab Community Edition and GitLab Enterprise Edition - CVE-2026-6269

Published: June 11, 2026


Vulnerability identifier: #VU134376
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-6269
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: GitLab, Inc
Affected software:
Gitlab Community Edition
GitLab Enterprise Edition

Detailed vulnerability description

The vulnerability allows a remote user to modify hidden merge requests.

The vulnerability exists due to improper access control in the Merge Requests API when handling requests to hidden merge requests. A remote user can send crafted API requests to modify hidden merge requests.

The issue affects users with developer-role permissions.


How to mitigate CVE-2026-6269

Install security update from vendor's website.

Sources