CVE-2026-67179
HIGH
NVD
CVSS Score
7.8
Severity
HIGH
Published
Aug 11, 2026
Vendor
unknown
Description
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. Fixed on 2026-06-18.