CVE-2026-2726: Incorrect Authorization in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 11.10 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an authenticated user to perform unauthorized actions on merge requests in other projects due to improper access control during cross-repository operations.
Other sources
GitLab has remediated an issue that could have allowed an authenticated user to perform unauthorized actions on merge requests in other projects due to improper access control during cross-repository operations.
— GitLab
Affected Software
Remediation
Information
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is the severity of CVE-2026-2726?
CVE-2026-2726 has been classified with a moderate severity due to improper access control issues.
How do I fix CVE-2026-2726?
To fix CVE-2026-2726, update to GitLab versions 18.8.8, 18.9.4, or 18.10.2 or later.
Who is affected by CVE-2026-2726?
CVE-2026-2726 affects users of GitLab Community Edition and Enterprise Edition versions from 11.10 up to 18.10.1.
What type of vulnerability is CVE-2026-2726?
CVE-2026-2726 is categorized as an improper access control vulnerability.
What actions could be performed due to CVE-2026-2726?
Due to CVE-2026-2726, authenticated users could potentially execute unauthorized actions on merge requests across different projects.