CVE-2021-39896: GitLab

Low severity, CVSS 3.8. EPSS: 0.6% chance of exploitation in the next 30 days.

In all versions of GitLab CE/EE since version 8.0, when an admin uses the impersonate feature twice and stops impersonating, the admin may be logged in as the second user they impersonated, which may lead to repudiation issues.

Affected products

• GitLab GitLab: from 8.0.0, before 14.1.7 (fixed in 14.1.7); from 14.2, before 14.2.5 (fixed in 14.2.5); from 14.3, before 14.3.1 (fixed in 14.3.1)

Published 2021-10-04. Last modified 2026-06-17.