CVE-2021-39877: GitLab

Medium severity, CVSS 5.5. EPSS: 1% chance of exploitation in the next 30 days.

A vulnerability was discovered in GitLab starting with version 12.2 that allows an attacker to cause uncontrolled resource consumption with a specially crafted file.

Affected products

• GitLab GitLab: from 12.2.0, 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.