CVE-2021-39904: GitLab

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

An Improper Access Control vulnerability in the GraphQL API in all versions of GitLab CE/EE starting from 13.1 before 14.2.6, all versions starting from 14.3 before 14.3.4, and all versions starting from 14.4 before 14.4.1 allows a Merge Request creator to resolve discussions and apply suggestions after a project owner has locked the Merge Request

Affected products

• GitLab GitLab: from 13.1.0, before 14.2.6 (fixed in 14.2.6); from 14.3.0, before 14.3.4 (fixed in 14.3.4)

Published 2021-11-05. Last modified 2026-06-17.