CVE-2026-1660: GitLab

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 12.3 before 18.9.6, 18.10 before 18.10.4, and 18.11 before 18.11.1 that under certain conditions could have allowed an authenticated user to cause denial of service when importing issues due to improper input validation.

Affected products

• GitLab GitLab: from 12.3.0, before 18.9.6 (fixed in 18.9.6); from 18.10.0, before 18.10.4 (fixed in 18.10.4); version 18.11.0 only

Published 2026-04-22. Last modified 2026-06-17.