CVE-2022-2251: GitLab Runner

High severity, CVSS 8.0. EPSS: 1.2% chance of exploitation in the next 30 days.

Improper sanitization of branch names in GitLab Runner affecting all versions prior to 15.3.5, 15.4 prior to 15.4.4, and 15.5 prior to 15.5.2 allows a user who creates a branch with a specially crafted name and gets another user to trigger a pipeline to execute commands in the runner as that other user.

Affected products

• GitLab Runner: before 15.3.5 (fixed in 15.3.5); from 15.4.0, before 15.4.4 (fixed in 15.4.4); from 15.5.0, before 15.5.2 (fixed in 15.5.2)

Published 2023-01-17. Last modified 2026-06-17.