GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.5 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an unauthenticated user to cause denial of service by sending specially crafted JSON payloads due to insufficient input validation.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 1
- First seenCVSS 7.5 · gitlabNVD modified 2026-10-14 13:10
Affected (CPE criteria) 2
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
References 3
- https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/ Release Notes
- https://gitlab.com/gitlab-org/gitlab/-/work_items/584490 Not Applicable
- https://hackerone.com/reports/3446641 Permissions Required