Skip to content
CVE PROGRAM SOURCE RECORD0.0 None

CVE-2026-12635

Reliance on Reverse DNS Resolution for a Security-Critical Action in GitLab

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 8.3 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an authenticated user with maintainer-role permissions to make requests to internal network resources through mirror synchronization due to improper URL validation.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

GitLab GitLab

Default version status: unaffected

  • 8.3 to < 18.11.6affected
  • 19.0 to < 19.0.3affected
  • 19.1 to < 19.1.1affected

References