CVE-2023-5198: GitLab

Medium severity, CVSS 4.3. EPSS: 0.5% chance of exploitation in the next 30 days.

An issue has been discovered in GitLab affecting all versions prior to 16.2.7, all versions starting from 16.3 before 16.3.5, and all versions starting from 16.4 before 16.4.1. It was possible for a removed project member to write to protected branches using deploy keys.

Affected products

• GitLab GitLab: from 8.15, before 16.2.8 (fixed in 16.2.8); from 16.3.0, before 16.3.5 (fixed in 16.3.5); version 16.4.0 only

Published 2023-09-29. Last modified 2026-06-17.