CVE-2026-3855: GitLab

Medium severity, CVSS 6.8. EPSS: 0.3% chance of exploitation in the next 30 days.

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2.7 before 19.1.8, 19.2 before 19.2.6, and 19.3 before 19.3.2 that under certain conditions could have allowed an authenticated user with project-level permissions to access restricted file contents on the server or cause denial of service due to improper validation of parameters in the Terraform state upload functionality.

Affected products

• GitLab GitLab: from 18.2.7, before 19.1.8 (fixed in 19.1.8); from 19.2.0, before 19.2.6 (fixed in 19.2.6); from 19.3.0, before 19.3.2 (fixed in 19.3.2)

Published 2026-09-16. Last modified 2026-09-28.