CVE-2019-15586: GitLab

Medium severity, CVSS 6.1. EPSS: 0.8% chance of exploitation in the next 30 days.

A XSS exists in Gitlab CE/EE < 12.1.10 in the Mermaid plugin.

Affected products

• GitLab GitLab: from 12.1.0, before 12.1.10 (fixed in 12.1.10)

Published 2020-01-28. Last modified 2026-06-17.