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: 5.3 [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]
CVE-ID: CVE-2026-5309
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
GitLab Enterprise Edition
Gitlab Community Edition
Gitlab Community Edition
How to mitigate CVE-2026-5309
Install security update from vendor's website.
GitLab Enterprise Edition - addressed in versions 18.11.6, 19.0.3, 19.1.1
Gitlab Community Edition - addressed in versions 18.11.6, 19.0.3, 19.1.1
Gitlab Community Edition - addressed in versions 18.11.6, 19.0.3, 19.1.1