CVE-2020-13334: GitLab

High severity, CVSS 7.5. EPSS: 1.5% chance of exploitation in the next 30 days.

In GitLab versions prior to 13.2.10, 13.3.7 and 13.4.2, improper authorization checks allow a non-member of a project/group to change the confidentiality attribute of issue via mutation GraphQL query

Affected products

• GitLab GitLab: from 8.6.0, before 13.2.10 (fixed in 13.2.10); from 13.3.0, before 13.3.7 (fixed in 13.3.7); from 13.4.0, before 13.4.2 (fixed in 13.4.2)

Published 2020-10-07. Last modified 2026-06-17.