CVE-2023-0921: GitLab

Medium severity, CVSS 4.3. EPSS: 84.4% chance of exploitation in the next 30 days.

A lack of length validation in GitLab CE/EE affecting all versions from 8.3 before 15.10.8, 15.11 before 15.11.7, and 16.0 before 16.0.2 allows an authenticated attacker to create a large Issue description via GraphQL which, when repeatedly requested, saturates CPU usage.

Affected products

• GitLab GitLab: from 8.3.0, before 15.10.8 (fixed in 15.10.8); from 15.11.0, before 15.11.7 (fixed in 15.11.7); from 16.0.0, before 16.0.2 (fixed in 16.0.2)

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