Improper Authorization in Gitlab Community Edition and GitLab Enterprise Edition - CVE-2026-1338

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Main Vulnerability Database Vulnerabilities #VU131682

Improper Authorization in Gitlab Community Edition and GitLab Enterprise Edition - CVE-2026-1338

Published: May 18, 2026


Vulnerability identifier: #VU131682
CSH Severity: Low
CVSS v4.0: 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/E:U/U:Clear
CVE-ID: CVE-2026-1338
CWE-ID: CWE-285
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 delete protected container registry tags.

The vulnerability exists due to improper authorization checks in container registry protected tags when handling tag deletion requests. A remote user can delete protected tags to delete protected container registry tags.


How to mitigate CVE-2026-1338

Install security update from vendor's website.

Sources