Improper access control in GitLab Enterprise Edition and Gitlab Community Edition - CVE-2026-5309

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Main Vulnerability Database Vulnerabilities #VU135175

Improper access control in GitLab Enterprise Edition and Gitlab Community Edition - CVE-2026-5309

Published: June 25, 2026


Vulnerability identifier: #VU135175
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-2026-5309
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: GitLab, Inc
Affected software:
GitLab Enterprise Edition
Gitlab Community Edition

Detailed vulnerability description

The vulnerability allows a remote user to read or modify another group's virtual registry cleanup policy settings.

The vulnerability exists due to improper access control in virtual registry cleanup policy api when handling requests for group policy settings. A remote user can send a crafted request to read or modify another group's virtual registry cleanup policy settings.


How to mitigate CVE-2026-5309

Install security update from vendor's website.

Sources