Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 12.7 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that under certain conditions could have allowed an authenticated user to access CI data from a different ref type than intended.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GitLab | GitLab | 12.7 – < 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 | — |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | gitlab-kas-18.6 +41 | No fix yet | — |
| Wolfi rolling | gitlab-runner-18.11 +5 | 18.11.4-r0 | — |
| Wolfi rolling | gitlab-runner-19.0 +5 | 19.0.1-r0 | — |
Advisories 2
- NCSC-2026-0168 Kwetsbaarheden verholpen in GitLab Community Edition en Enterprise Edition NCSC-NL (Netherlands) · May 28, 2026
- WID-SEC-2026-1704 GitLab: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 27, 2026