CVE-2019-5883: GitLab

Critical severity, CVSS 9.1. EPSS: 1.5% chance of exploitation in the next 30 days.

An Incorrect Access Control issue was discovered in GitLab Community and Enterprise Edition 6.0 and later but before 11.3.11, 11.4.x before 11.4.8, and 11.5.x before 11.5.1. The issue comments feature could allow a user to comment on an issue which they shouldn't be allowed to.

Affected products

• GitLab GitLab: from 6.0.0, before 11.3.11 (fixed in 11.3.11); from 11.4.0, before 11.4.8 (fixed in 11.4.8); from 11.5.0, before 11.5.1 (fixed in 11.5.1)

Published 2019-05-17. Last modified 2026-06-17.