GitLab Access Control Bypass in test reports CE/EE 18.4-19.2.1 (CVE-2026-4672)
CVE-2026-4672 Published on July 29, 2026
Missing Authorization in GitLab
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.
Vulnerability Analysis
CVE-2026-4672 is exploitable with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. Public availability of a proof of concept (POC) exploit exists for CVE-2026-4672. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.
Weakness Type
What is an AuthZ Vulnerability?
The software does not perform an authorization check when an actor attempts to access a resource or perform an action.
CVE-2026-4672 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-4672
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Affected Versions
GitLab:- Version 18.4 and below 19.0.5 is affected.
- Version 19.1 and below 19.1.3 is affected.
- Version 19.2 and below 19.2.1 is affected.