GitLab has remediated an issue in EE affecting all versions from 17.1 before 18.3.5, 18.4 before 18.4.3, and 18.5 before 18.5.1 that could have allowed an authenticated attacker with specific permissions to hijack project runners from other projects.
Fix
Patch, vendor advisory and mitigation references on NVD 1
- https://about.gitlab.com/releases/2025/10/22/patch-release-gitlab-18-5-1-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 8.8 · gitlabNVD modified 2026-10-19 13:10
Affected (CPE criteria) 2
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*cpe:2.3:a:gitlab:gitlab:18.5.0:*:*:*:enterprise:*:*:*
References 3
- https://about.gitlab.com/releases/2025/10/22/patch-release-gitlab-18-5-1-released/ Release Notes, Vendor Advisory
- https://gitlab.com/gitlab-org/gitlab/-/issues/576900 Broken Link
- https://hackerone.com/reports/3356284 Permissions Required