Unrated severityNVD Advisory· Published Sep 1, 2023· Updated Nov 20, 2025
Missing Authorization in GitLab
CVE-2023-1555
Description
An issue has been discovered in GitLab affecting all versions starting from 15.2 before 16.1.5, all versions starting from 16.2 before 16.2.5, all versions starting from 16.3 before 16.3.1. A namespace-level banned user can access the API.
Affected products
3cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*range: 15.2
- (no CPE)range: >=15.2, <16.1.5; >=16.2, <16.2.5; >=16.3, <16.3.1
Patches
Vulnerability mechanics
References
2- hackerone.com/reports/1911908mitretechnical-descriptionexploitpermissions-required
- gitlab.com/gitlab-org/gitlab/-/issues/398587mitreissue-trackingpermissions-required
News mentions
1- GitLab Security Release: 16.3.1, 16.2.5, and 16.1.5GitLab Security Releases · Aug 31, 2023