CVE-2026-12436: GitLab

High severity, CVSS 8.4. EPSS: 0.5% chance of exploitation in the next 30 days.

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.0 before 19.0.5, 19.1 before 19.1.3, and 19.2 before 19.2.1 that under certain conditions could have allowed an authenticated user to modify CI/CD configuration belonging to another user due to improper validation of user-supplied attributes when processing pipeline schedule inputs.

Affected products

• GitLab GitLab: from 18.0.0, before 19.0.5 (fixed in 19.0.5); from 19.1.0, before 19.1.3 (fixed in 19.1.3); version 19.2.0 only

Published 2026-07-29. Last modified 2026-08-03.