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CVE-2026-5842— decolua 9router Administrative API Endpoint api authorization

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.

9Router是decolua个人开发者的一个智能路由与降级的AI模型代理工具。 9router 0.3.47及之前版本存在安全漏洞，该漏洞源于Administrative API Endpoint组件中/api文件存在授权绕过问题，可能导致授权绕过。

CVSS 7.3 · High EPSS 0.54% · P43

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2026-5842

Vulnerability Information
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Vulnerability Title
decolua 9router Administrative API Endpoint api authorization
Source: CVE Program / CVE List V5
Vulnerability Description
A security vulnerability has been detected in decolua 9router up to 0.3.47. The impacted element is an unknown function of the file /api of the component Administrative API Endpoint. The manipulation leads to authorization bypass. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 0.3.75 is sufficient to resolve this issue. It is suggested to upgrade the affected component.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
9Router 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
9Router是decolua个人开发者的一个智能路由与降级的AI模型代理工具。 9router 0.3.47及之前版本存在安全漏洞，该漏洞源于Administrative API Endpoint组件中/api文件存在授权绕过问题，可能导致授权绕过。
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 0.3.0 -

II. Public POCs for CVE-2026-5842

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8051 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
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Trigger conditions & impact
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Exploit chain & mitigation
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III. Intelligence Information for CVE-2026-5842

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Vendor Advisories for CVE-2026-5842 (1)

Security Blog Posts for CVE-2026-5842 (2)

IV. Related Vulnerabilities

Same product: 9router
Same vendor: decolua
Same weakness: CWE-639

V. Comments for CVE-2026-5842

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