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CVE-2026-67179— Genkit improper host header validation

Quick assessment

Affected
genkit-ai genkit
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Genkit是Genkit组织开源的一款集成机器学习能力的开发框架。 Genkit存在跨站脚本漏洞，该漏洞源于未正确验证主机请求头，可能导致开发人员网络中的任意主机或访问的网站通过DNS重绑定访问Dev UI服务器上的POST /api/runAction接口，执行任意已注册的Genkit操作并读取结果。

CVSS 7.8 · High EPSS 0.14% · P3

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

VendorProduct Version RangeStatus
genkit-ai genkit < 2026-06-18 affected
2026-06-18 unaffected
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I. Basic Information for CVE-2026-67179

Vulnerability Information
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Genkit improper host header validation
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对HTTP头部进行脚本语法转义处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Genkit 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Genkit是Genkit组织开源的一款集成机器学习能力的开发框架。 Genkit存在跨站脚本漏洞，该漏洞源于未正确验证主机请求头，可能导致开发人员网络中的任意主机或访问的网站通过DNS重绑定访问Dev UI服务器上的POST /api/runAction接口，执行任意已注册的Genkit操作并读取结果。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
genkit-ai genkit 0 ~ 2026-06-18 -

II. Public POCs for CVE-2026-67179

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 5939 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
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Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-67179

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Patches & Fixes for CVE-2026-67179 (1)

Vendor Advisories for CVE-2026-67179 (1)

Proof of Concept for CVE-2026-67179 (1)

News Coverage for CVE-2026-67179 (1)

IV. Related Vulnerabilities

Same weakness: CWE-644

V. Comments for CVE-2026-67179

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