Description
GitLab has remediated an issue in GitLab EE affecting all versions from 18.9 before 19.1.7, 19.2 before 19.2.5, and 19.3 before 19.3.1 that, under certain conditions, an authenticated user with developer-role permissions could have executed arbitrary commands in a CI context, due to the Claude agent processing configuration from a user-controlled source.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GitLab | GitLab | 18.9 – < 19.1.7, 19.2 – < 19.2.5, 19.3 – < 19.3.1 | 19.1.7 |
Advisories 1
- WID-SEC-2026-3029 GitLab: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 27, 2026
References
- https://gitlab.com/gitlab-org/gitlab/-/work_items/607342
- HackerOne Bug Bounty Report #3863650 technical-description exploit permissions-required
- https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-3-1-released/