Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 8.14 before 18.7.6, 18.8 before 18.8.6, and 18.9 before 18.9.2 that could have allowed an authenticated user to gain unauthorized access to confidential issue title created in public projects under certain circumstances.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GitLab | GitLab | 8.14 – < 18.7.6, 18.8 – < 18.8.6, 18.9 – < 18.9.2 | 18.7.6 |
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 | — |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | gitlab-agent-18.6 | 18.6.6-r4 | — |
| Wolfi rolling | gitlab-runner-18.6 +5 | 18.6.6-r5 | — |
| Wolfi rolling | gitlab-runner-18.7 +5 | 18.7.2-r8 | — |
| Wolfi rolling | gitlab-runner-18.8 +5 | 18.8.0-r4 | — |
| Wolfi rolling | gitlab-runner-18.9 +5 | 18.9.0-r3 | — |
Advisories 1
- NCSC-2026-0093 Kwetsbaarheden verholpen in GitLab NCSC-NL (Netherlands) · Mar 12, 2026
References
- https://gitlab.com/gitlab-org/gitlab/-/work_items/586613
- HackerOne Bug Bounty Report #3515716 technical-description exploit permissions-required