CVE-2026-67179

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.

CVSS 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 11% of CVEs (scores of 2026-10-25)

CWE

CWE-644

Published

2026-08-11

Modified

2026-10-24

Record from

the NVD, synced 2026-10-24

References

• https://github.com/genkit-ai/genkit/issues/5581
• https://github.com/genkit-ai/genkit/pull/5587
• https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-223-01.json
• https://www.cve.org/CVERecord?id=CVE-2026-67179

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