GitLab has remediated an issue in GitLab CE/EE affecting all versions from 11.2 before 18.9.6, 18.10 before 18.10.4, and 18.11 before 18.11.1 that under certain conditions could have allowed an authenticated user with project owner permissions to bypass group fork prevention settings due to improper authorization checks.
Fix
Patch, vendor advisory and mitigation references on NVD 1
- https://about.gitlab.com/releases/2026/04/22/patch-release-gitlab-18-11-1-released/ Release Notes, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 2.7 · gitlabNVD modified 2026-10-14 13:10
Affected (CPE criteria) 4
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*cpe:2.3:a:gitlab:gitlab:18.11.0:*:*:*:community:*:*:*cpe:2.3:a:gitlab:gitlab:18.11.0:*:*:*:enterprise:*:*:*
References 3
- https://about.gitlab.com/releases/2026/04/22/patch-release-gitlab-18-11-1-released/ Release Notes, Vendor Advisory
- https://gitlab.com/gitlab-org/gitlab/-/work_items/567781 Broken Link
- https://hackerone.com/reports/3275222 Permissions Required