Medium severity5.4NVD Advisory· Published Apr 8, 2026· Updated Sep 28, 2026
CVE-2026-4398
CVE-2026-4398
Description
GitLab has remediated an issue in GitLab EE affecting all versions from 18.3 before 19.1.7, 19.2 before 19.2.5, and 19.3 before 19.3.1 that, under certain conditions, an authenticated user could have assigned compliance frameworks from namespaces they were not authorized to access to their own project, due to missing namespace validation on self-managed instances.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3- Range: from 18.3 before 19.1.7, 19.2 before 19.2.5, and 19.3 before 19.3.1
- Range: from 18.3 before 19.1.7, 19.2 before 19.2.5, and 19.3 before 19.3.1
Patches
Vulnerability mechanics
References
2- docs.gitlab.com/releases/patches/patch-release-gitlab-19-3-1-released/nvdRelease NotesVendor Advisory
- hackerone.com/reports/3549150nvdPermissions Required
News mentions
1- GitLab Patch Release: 19.3.1, 19.2.5, 19.1.7GitLab Security Releases · Aug 26, 2026