Description
An issue has been discovered in GitLab CE/EE affecting all versions starting from 7.8 before 16.9.6, all versions starting from 16.10 before 16.10.4, all versions starting from 16.11 before 16.11.1. Under certain conditions, an attacker with their Bitbucket account credentials may be able to take over a GitLab account linked to another user's Bitbucket account, if Bitbucket is used as an OAuth 2.0 provider on GitLab.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GitLab | GitLab | 7.8 – < 16.9.6, 16.10 – < 16.10.4, 16.11 – < 16.11.1 | 16.9.6 |
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 26.10 | gitlab-agent | No fix yet | — |
| Ubuntu 26.04 LTS | gitlab-agent | No fix yet | — |
| Ubuntu 25.10 | gitlab-agent | No fix yet | — |
| Ubuntu 24.04 LTS | gitlab-agent | No fix yet | — |
| Ubuntu 16.04 LTS | gitlab | No fix yet | — |
Advisories 1
- WID-SEC-2024-0973 GitLab: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 24, 2024
References
- GitLab Issue #452426 issue-tracking