GitLab CE/EE: Authenticated Repo Download Code Divergence (before 18.9.2)
CVE-2026-1230 Published on March 11, 2026
Use of Incorrectly-Resolved Name or Reference in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 1.0 before 18.7.6, 18.8 before 18.8.6, and 18.9 before 18.9.2 that could have allowed an authenticated user to cause repository downloads to contain different code than displayed in the web interface due to incorrect validation of branch references under certain circumstances.
Vulnerability Analysis
CVE-2026-1230 is exploitable with network access, requires user interaction and a 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-2026-1230. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, with no impact on integrity, and no impact on availability.
Weakness Type
Use of Incorrectly-Resolved Name or Reference
The software uses a name or reference to access a resource, but the name/reference resolves to a resource that is outside of the intended control sphere.
Products Associated with CVE-2026-1230
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Affected Versions
GitLab:- Version 1.0 and below 18.7.6 is affected.
- Version 18.8 and below 18.8.6 is affected.
- Version 18.9 and below 18.9.2 is affected.