CVE-2020-26406: GitLab

Medium severity, CVSS 5.3. EPSS: 1.4% chance of exploitation in the next 30 days.

Certain SAST CiConfiguration information could be viewed by unauthorized users in GitLab EE starting with 13.3. This information was exposed through GraphQL to non-members of public projects with repository visibility restricted as well as guest members on private projects. Affected versions are: >=13.3, <13.3.9,>=13.4, <13.4.5,>=13.5, <13.5.2.

Affected products

• GitLab GitLab: from 13.3.0, before 13.3.9 (fixed in 13.3.9); from 13.4.0, before 13.4.5 (fixed in 13.4.5); from 13.5.0, before 13.5.2 (fixed in 13.5.2)

Published 2020-11-17. Last modified 2026-06-17.