CVE-2026-19478

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 allow an unauthenticated user to remotely modify or delete public projects and user data via a GraphQL directive.

CVSS v3.1

9.4 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

EPSS

6.00% chance of exploitation in the next 30 days, 93th percentile

Nuclei

critical · CWE-94

Published

2026-08-17

Proof-of-concept exploits (8)

• https://hackerone.com/reports/3926431
• davkharrr/CVE-2026-19478-PoC11★ · 2026-08-18
• EQSTLab/CVE-2026-194783★ · 2026-08-27
• HORKimhab/CVE-2026-19650-CVE-2026-194780★ · 2026-08-17
• punitdarji/Gitlab-CVE-2026-194780★ · 2026-08-22
• renzi25031469/CVE-2026-194781★ · 2026-08-19
• n0xdaemon/cve-2026-194780★ · 2026-08-20
• dinosn/gitlab-cve-2026-19478-lab

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-19478.yaml

References

• CVE Record
• NVD entry

Related

• CVE-2024-0012
• CVE-2024-36401
• CVE-2024-53677
• CVE-2024-9264
• CVE-2025-0282
• CVE-2025-4123