Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.9 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that under certain conditions could have allowed a blocked Project Access Token to continue accessing private resources due to incorrect authorization enforcement.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GitLab | GitLab | 18.9 – < 18.10.7, 18.11 – < 18.11.4, 19.0 – < 19.0.1 | 18.10.7 |
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 1
- WID-SEC-2026-1727 GitLab: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen BSI CERT-Bund (WID) · May 28, 2026
References
- HackerOne Bug Bounty Report #3554993 technical-description exploit permissions-required
- https://gitlab.com/gitlab-org/gitlab/-/work_items/590694
- https://about.gitlab.com/releases/2026/05/27/patch-release-gitlab-19-0-1-released/