CVE-2026-4879: GitLab

Medium severity, CVSS 4.3. EPSS: 0.3% chance of exploitation in the next 30 days.

GitLab has remediated an issue in GitLab EE affecting all versions from 16.0 before 19.0.6, 19.1 before 19.1.4, and 19.2 before 19.2.2 that under certain conditions could have allowed an authenticated user with developer-role permissions to view external status check configuration restricted to higher-privileged roles due to missing authorization on a merge request API endpoint.

Affected products

• GitLab GitLab: from 16.0.0, before 19.0.6 (fixed in 19.0.6); from 19.1.0, before 19.1.4 (fixed in 19.1.4); from 19.2.0, before 19.2.2 (fixed in 19.2.2)

Published 2026-08-12. Last modified 2026-08-19.