Description
GitLab has remediated an issue in GitLab EE affecting all versions from 18.3 before 18.11.12, 19.0 before 19.0.9, 19.1 before 19.1.8, 19.2 before 19.2.6, and 19.3 before 19.3.2 that under certain conditions could allow an authenticated user with Duo Chat access to obtain Advanced Search instance configurations and sensitive credentials using a specially crafted GraphQL subscription argument to bypass serialization and perform server object lookup.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GitLab | GitLab | 18.3 – < 18.11.12, 19.0 – < 19.0.9, 19.1 – < 19.1.8, 19.2 – < 19.2.6, 19.3 – < 19.3.2 | 18.11.12 |
Advisories 1
- WID-SEC-2026-3315 GitLab: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 29, 2026
References
- https://gitlab.com/gitlab-org/gitlab/-/work_items/628160
- HackerOne Bug Bounty Report #4012289 technical-description exploit permissions-required