CVE-2023-3900: GitLab

High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days.

An issue has been discovered in GitLab CE/EE affecting all versions starting from 16.1 before 16.1.3, all versions starting from 16.2 before 16.2.2. An invalid 'start_sha' value on merge requests page may lead to Denial of Service as Changes tab would not load.

Affected products

• GitLab GitLab: from 16.1, before 16.1.3 (fixed in 16.1.3); from 16.2, before 16.2.2 (fixed in 16.2.2)

Published 2023-08-02. Last modified 2026-06-17.