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OpenAdvisories
High VA-26-223-01 1 CVE

Genkit improper host header validation

Published Aug 11, 2026 · Updated Aug 11, 2026

Vendor: genkit-ai Product: genkit

Summary

Genkit does not properly validate host request headers. Any host on the developer's network, and any website the developer visits (via DNS rebinding), can reach POST /api/runAction on the Dev UI server (default port 4000) and execute any registered Genkit action and read the result.

Vulnerabilities 1

  • High 7.8
    CVE-2026-67179

    Genkit improper host header validation

    Genkit does not properly validate host request headers. Any host on the developer's network, and any website the developer visits (via DNS rebinding), can reach POST /api/runAction on the Dev UI server (default port 4000) and execute any registered Genkit act…

    genkit-ai genkit

Revision history

  1. #1.0.0

    Initial publication