GitLab CE/EE 19.0-19.4.1 Auth Bypass on Linked Work Items
CVE-2026-8937 Published on September 29, 2026
Missing Authorization in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.0 before 19.2.7, 19.3 before 19.3.3, and 19.4 before 19.4.1 that under certain conditions could have allowed an authenticated user to read private child issue contents, including titles and descriptions, from projects they had no access to, due to missing authorization checks on linked work items within visible epics.
Vulnerability Analysis
CVE-2026-8937 can be exploited with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. 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-2026-8937 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-8937
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Affected Versions
GitLab:- Version 19.0 and below 19.2.7 is affected.
- Version 19.3 and below 19.3.3 is affected.
- Version 19.4 and below 19.4.1 is affected.