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 action and read the result. Fixed on 2026-06-...

CVE-2026-67179

Genkit’s Dev UI server (default port 4000) suffers from improper validation of host request headers, enabling DNS rebinding to reach POST /api/runAction from any host on the developer’s network or any site the developer visits. This allows an attacker to execute any registered Genkit action and r...

Genkit improper host header validation

RISK EVALUATION 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...

CVE-2026-67179: Improper Neutralization of HTTP Headers for Scripting Syntax

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-...

PT-2026-70265

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-...