High 7.8Published Aug 11, 2026

CVE-2026-67179Genkit improper host header validation

Updated under an hour ago (2026-10-19 09:10 UTC)

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It affects genkit-ai genkit. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for genkit-ai genkit

Exploited in the last 30 days

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: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-644
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: cisa-cg
NVD analysis: Awaiting Analysis
Record last updated: Aug 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

genkit-ai genkit genkit_ai:genkit (from the name)	before 2026-06-18; 2026-06-18 not affected	CNA record

References

https://github.com/genkit-ai/genkit/issues/5581issue-tracking
https://github.com/genkit-ai/genkit/pull/5587patch
https://www.cve.org/CVERecord?id=CVE-2026-67179vdb-entry
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-223-01.jsonthird-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.