Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.11 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have, under certain circumstances, allowed an unauthenticated user to perform unauthorized actions on behalf of another user by injecting malicious external scripts into the Swagger UI."
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GitLab | GitLab | 15.11 – < 18.4.6, 18.5 – < 18.5.4, 18.6 – < 18.6.2 | 18.4.6 |
Advisories 2
- WID-SEC-2025-2822 GitLab: Mehrere Schwachstellen BSI CERT-Bund (WID) · Dec 11, 2025
- NCSC-2025-0390 Kwetsbaarheden verholpen in GitLab CE/EE NCSC-NL (Netherlands) · Dec 11, 2025
References
- GitLab Issue #577975 issue-tracking permissions-required
- HackerOne Bug Bounty Report #3317485 technical-description exploit permissions-required
- https://about.gitlab.com/releases/2025/12/10/patch-release-gitlab-18-6-2-released/