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CVE-2026-19650

Cross-Site Request Forgery (CSRF) in GitLab

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 18.11.11, 19.0.8, 19.1.6, 19.2.4
1 proof of concept on GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.11.11, 19.0 before 19.0.8, 19.1 before 19.1.6, and 19.2 before 19.2.4 that under certain conditions could have allowed an unauthenticated user to execute mutations via GET requests due to improper request validation in GraphQL multiplex query handling.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • GitLab GitLab

    From 18.2 · fixed in 18.11.11; From 19.0 · fixed in 19.0.8; From 19.1 · fixed in 19.1.6; From 19.2 · fixed in 19.2.4

References 4

gitlab.com

hackerone.com

docs.gitlab.com

GitHub · HORKimhab/CVE-2026-19650-CVE-2026-19478