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CVE-2026-56677— 9Router: Authenticated Server-Side Request Forgery (SSRF) via OIDC Provider Test Endpoint

Quick assessment

Affected
decolua 9router
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.

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 0.5.4及之前版本存在安全漏洞，该漏洞源于src/app/api/auth/oidc/test/route.js中的POST /api/auth/oidc/test端点将用户控制的issuerUrl参数传递给fetchOidcDiscovery()，且未限制私有或环回地址，可能导致未认证攻击者在仪表盘登录禁用时扫描内部服务并反射OIDC发现字段。

CVSS 8.6 · High EPSS 0.27% · P19

Possible ATT&CK Techniques 1 AI

T1595.001 · Scanning IP Blocks

Affected Version Matrix 1

VendorProduct Version RangeStatus
decolua 9router <= 0.5.4 affected
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I. Basic Information for CVE-2026-56677

Vulnerability Information
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Vulnerability Title
9Router: Authenticated Server-Side Request Forgery (SSRF) via OIDC Provider Test Endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
9Router is an AI router & token saver. In 0.5.4 and earlier, the POST /api/auth/oidc/test endpoint in src/app/api/auth/oidc/test/route.js passes the user-controlled issuerUrl parameter to fetchOidcDiscovery() in src/lib/auth/oidc.js without restricting private or loopback destinations, allowing unauthenticated attackers when dashboard login is disabled to scan internal services and reflect OIDC discovery fields including token_endpoint and jwks_uri.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
decolua 9Router 授权问题漏洞
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 0.5.4及之前版本存在安全漏洞，该漏洞源于src/app/api/auth/oidc/test/route.js中的POST /api/auth/oidc/test端点将用户控制的issuerUrl参数传递给fetchOidcDiscovery()，且未限制私有或环回地址，可能导致未认证攻击者在仪表盘登录禁用时扫描内部服务并反射OIDC发现字段。
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
decolua 9router <= 0.5.4 -

II. Public POCs for CVE-2026-56677

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 7971 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-56677

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Vendor Advisories for CVE-2026-56677 (1)

IV. Related Vulnerabilities

Same product: 9router
Same vendor: decolua
Same weakness: CWE-306

V. Comments for CVE-2026-56677

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