CVE-2026-3553: GitLab

Low severity, CVSS 3.1. EPSS: 0.3% chance of exploitation in the next 30 days.

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 12.0 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user to access confidential issue details due to incorrect authorization checks.

Affected products

• GitLab GitLab: from 12.0.0, before 18.10.8 (fixed in 18.10.8); from 18.11.0, before 18.11.5 (fixed in 18.11.5); from 19.0.0, before 19.0.2 (fixed in 19.0.2)

Published 2026-06-11. Last modified 2026-06-17.