CVE-2021-39902: GitLab

Medium severity, CVSS 4.3. EPSS: 0.8% chance of exploitation in the next 30 days.

Incorrect Authorization in GitLab CE/EE 13.4 or above allows a user with guest membership in a project to modify the severity of an incident.

Affected products

• GitLab GitLab: from 13.4.0, before 14.2.6 (fixed in 14.2.6); from 14.3.0, before 14.3.4 (fixed in 14.3.4); version 14.4.0 only

Published 2021-11-04. Last modified 2026-06-17.