CVE-2023-5963: GitLab

Medium severity, CVSS 4.3. EPSS: 0.5% chance of exploitation in the next 30 days.

An issue has been discovered in GitLab EE with Advanced Search affecting all versions from 13.9 to 16.3.6, 16.4 prior to 16.4.2 and 16.5 prior to 16.5.1 that could allow a denial of service in the Advanced Search function by chaining too many syntax operators.

Affected products

• GitLab GitLab: from 13.9.0, up to and including 16.3.6; from 16.4.0, before 16.4.2 (fixed in 16.4.2); version 16.5.0 only

Published 2023-11-06. Last modified 2026-06-17.