Description
An issue has been discovered in GitLab CE/EE affecting all versions from 11.1 before 17.10.7, 17.11 before 17.11.3, and 18.0 before 18.0.1. Improper XPath validation allows modified SAML response to bypass 2FA requirement under specialized conditions.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GitLab | GitLab | 11.1 – < 17.10.7, 17.11 – < 17.11.3, 18.0 – < 18.0.1 | 17.10.7 |
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 2
- NCSC-2025-0176 Kwetsbaarheden verholpen in GitLab NCSC-NL (Netherlands) · May 23, 2025
- WID-SEC-2025-1117 GitLab: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 22, 2025
References
- GitLab Issue #507445 issue-tracking permissions-required
- HackerOne Bug Bounty Report #2851261 technical-description exploit permissions-required