Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.8 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 unauthenticated user to cause denial of service by sending repeated GraphQL queries.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GitLab | GitLab | 10.8 – < 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 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 #557165 issue-tracking permissions-required
- HackerOne Bug Bounty Report #3240210 technical-description exploit permissions-required
- https://about.gitlab.com/releases/2026/02/10/patch-release-gitlab-18-8-4-released/