Vulnerability · Published Jul 29, 2026 · Assigned by GitLab
CVE-2026-4672Missing Authorization in GitLab
Medium 4.3
In plain English
A medium-severity missing authorization in GitLab from GitLab. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities).
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.4%top 66.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.4 before 19.0.5, 19.1 before 19.1.3, and 19.2 before 19.2.1 that under certain conditions could have allowed an authenticated user with guest-role permissions to access test report contents they were not authorized to view due to improper access control enforcement.
Affected products (as reported)
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
References
- https://gitlab.com/gitlab-org/gitlab/-/work_items/594528
- HackerOne Bug Bounty Report #3617676 technical-description, exploit, permissions-required
- https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-1-released/