Description
An issue has been discovered in GitLab EE affecting all versions starting from 8.13 before 16.4.3, all versions starting from 16.5 before 16.5.3, all versions starting from 16.6 before 16.6.1. It was possible for an attacker to abuse the `Allowed to merge` permission as a guest user, when granted the permission through a group.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GitLab | GitLab | 8.13 – < 16.4.3, 16.5 – < 16.5.3, 16.6 – < 16.6.1 | 16.4.3 |
Advisories 2
- WID-SEC-2023-3041 GitLab: Mehrere Schwachstellen BSI CERT-Bund (WID) · Feb 3, 2026
- WID-SEC-2023-2520 GitLab: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 28, 2023
References
- GitLab Issue #423835 issue-tracking permissions-required
- HackerOne Bug Bounty Report #2104540 technical-description exploit permissions-required