CVE-2021-39909: GitLab

Medium severity, CVSS 5.3. EPSS: 0.6% chance of exploitation in the next 30 days.

Lack of email address ownership verification in the CODEOWNERS feature in all versions of GitLab EE starting from 11.3 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 an attacker to bypass CODEOWNERS Merge Request approval requirement under rare circumstances

Affected products

• GitLab GitLab: from 11.3.0, 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; from 11.2.0, before 14.3.4 (fixed in 14.3.4); from 11.3.0, before 14.4.1 (fixed in 14.4.1)

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