Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.6 before 18.6.6, 18.7 before 18.7.4, and 18.8 before 18.8.4 that, under certain conditions could have allowed an authenticated user to perform unauthorized operations by submitting GraphQL mutations through the GLQL API endpoint.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GitLab | GitLab | 18.6 – < 18.6.6, 18.7 – < 18.7.4, 18.8 – < 18.8.4 | 18.6.6 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | gitlab-agent | No fix yet | — |
| Ubuntu 26.04 LTS | gitlab-agent | No fix yet | — |
| Ubuntu 25.10 | gitlab-agent | No fix yet | — |
| Ubuntu 24.04 LTS | gitlab-agent | No fix yet | — |
| Ubuntu 16.04 LTS | gitlab | No fix yet | — |
Advisories 2
- NCSC-2026-0062 Kwetsbaarheden verholpen in GitLab CE/EE NCSC-NL (Netherlands) · Feb 11, 2026
- WID-SEC-2026-0380 GitLab: Mehrere Schwachstellen BSI CERT-Bund (WID) · Feb 10, 2026
References
- GitLab Issue #583961 issue-tracking permissions-required
- HackerOne Bug Bounty Report #3451435 technical-description exploit permissions-required
- https://about.gitlab.com/releases/2026/02/10/patch-release-gitlab-18-8-4-released/