CVE-2021-39867: GitLab

High severity, CVSS 8.1. EPSS: 0.9% chance of exploitation in the next 30 days.

In all versions of GitLab CE/EE since version 8.15, a DNS rebinding vulnerability in Gitea Importer may be exploited by an attacker to trigger Server Side Request Forgery (SSRF) attacks.

Affected products

• GitLab GitLab: from 8.15.0, before 14.1.7 (fixed in 14.1.7); from 14.2.0, before 14.2.5 (fixed in 14.2.5); version 4.3.0 only

Published 2021-10-05. Last modified 2026-06-17.