CVE-2020-13356: GitLab

High severity, CVSS 8.2. EPSS: 1.8% chance of exploitation in the next 30 days.

An issue has been discovered in GitLab CE/EE affecting all versions starting from 8.8.9. A specially crafted request could bypass Multipart protection and read files in certain specific paths on the server. Affected versions are: >=8.8.9, <13.3.9,>=13.4, <13.4.5,>=13.5, <13.5.2.

Affected products

• GitLab GitLab: from 8.8.9, 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 2020-11-19. Last modified 2026-06-17.