CVE-2026-67179
7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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. Fixed on 2026-06-18.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| genkit-ai | genkit | 0 < 2026-06-18 | affected |
| genkit-ai | genkit | 2026-06-18 | unaffected |
Weaknesses
- CWE-644: CWE-644 Improper Neutralization of HTTP Headers for Scripting Syntax
References
- https://github.com/genkit-ai/genkit/issues/5581
- https://github.com/genkit-ai/genkit/pull/5587
- https://www.cve.org/CVERecord?id=CVE-2026-67179
- https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-223-01.json
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