Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.4 before 18.5.5, 18.6 before 18.6.3, and 18.7 before 18.7.1 that could have allowed an authenticated user with specific permissions to remove all project runners from unrelated projects by manipulating GraphQL runner associations.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GitLab | GitLab | 15.4 – < 18.5.5, 18.6 – < 18.6.3, 18.7 – < 18.7.1 | 18.5.5 |
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
- WID-SEC-2026-0037 GitLab CE und EE: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 11, 2026
- NCSC-2026-0003 Kwetsbaarheden verholpen in GitLab NCSC-NL (Netherlands) · Jan 9, 2026
References
- GitLab Issue #573728 issue-tracking permissions-required
- HackerOne Bug Bounty Report #3292475 technical-description exploit permissions-required
- https://about.gitlab.com/releases/2026/01/07/patch-release-gitlab-18-7-1-released/