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CVE-2026-56678— 9Router: Kiro region injection allows authenticated SSRF with Authorization header forwarding

CVSS 6.4 · Medium EPSS 0.17% · P7

Possible ATT&CK Techniques 1AI

T1557.002 · ARP Cache Poisoning

Affected Version Matrix 1

VendorProductVersion RangeStatus
decolua9router< 0.5.6affected
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I. Basic Information for CVE-2026-56678

Vulnerability Information
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Vulnerability Title
9Router: Kiro region injection allows authenticated SSRF with Authorization header forwarding
Source: NVD (National Vulnerability Database)
Vulnerability Description
9Router is an AI router & token saver. Prior to 0.5.6, the Kiro API-key validation endpoint POST /api/oauth/kiro/api-key builds an upstream URL using a user-controlled region value, allowing an authenticated attacker to supply a crafted region such as kiro-canary.local:8443# and cause 9Router to send the Kiro validation request to an attacker-controlled host while forwarding the submitted Kiro API key as an Authorization header. This issue is fixed in version 0.5.6.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
decolua 9router 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
decolua 9Router是decolua基金会的一个智能路由与降级的AI模型代理工具。 decolua 9router 0.5.6之前版本存在安全漏洞，该漏洞源于Kiro API密钥验证端点POST /api/oauth/kiro/api-key使用用户控制的区域值构建上游URL，可能导致经过身份验证的攻击者将Kiro验证请求发送到攻击者控制的服务器端。
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

VendorProductAffected VersionsCPESubscribe
decolua9router < 0.5.6 -

II. Public POCs for CVE-2026-56678

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III. Intelligence Information for CVE-2026-56678

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Patches & Fixes for CVE-2026-56678 (1)

Vendor Advisories for CVE-2026-56678 (1)

Other References for CVE-2026-56678 (1)

Same Patch Batch · decolua · 2026-07-15 · 6 CVEs total

CVE-2026-4633910.0 CRITICAL9Router: Unauthenticated Remote Code Execution via unprotected MCP custom plugin routes
CVE-2026-493529.8 CRITICAL9Router: Hardcoded Default fallback JWT Secret Allows Authentication Bypass
CVE-2026-623128.8 HIGH9Router: Authenticated RCE via Unvalidated MCP Plugin Arguments
CVE-2026-493537.5 HIGH9Router: Local-Only Access Gate Bypass in 9router via Host Header SpoofING
CVE-2026-566799Router: Mass assignment in PATCH /api/settings allows authenticated authorization downgra

IV. Related Vulnerabilities

Same product: 9router
Same vendor: decolua
Same weakness: CWE-20

V. Comments for CVE-2026-56678

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