GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.10 before 18.3.5, 18.4 before 18.4.3, and 18.5 before 18.5.1 that could have allowed an unauthenticated attacker to cause a denial of service condition by sending specially crafted payloads.
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 7.5 · gitlabNVD modified 2026-10-19 16:10
Affected (CPE criteria) 4
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*cpe:2.3:a:gitlab:gitlab:18.5.0:*:*:*:community:*:*:*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/570336 Broken Link
- https://hackerone.com/reports/3338151 Permissions Required