CVE-2026-46339
Full vulnerability record from the local CVENow database.
Description
9Router is an AI router & token saver. From 0.4.30 until 0.4.37, 9Router's src/proxy.js middleware did not protect /api/cli-tools/* and /api/mcp/*, allowing unauthenticated registration of customPlugins through src/app/api/cli-tools/cowork-settings/route.js and command execution through the MCP bridge. This vulnerability is fixed in 0.4.37.
Severity
CRITICAL
CVSS score
10.0
(v3.1)
Vulnerability status
Deferred
Source identifier
Published
2026-07-15 21:16:50.067000
Last modified
2026-10-24 21:10:00.130000
View original CVE JSON
{
"id": "CVE-2026-46339",
"sourceIdentifier": "[email protected]",
"published": "2026-07-15T21:16:50.067",
"lastModified": "2026-10-24T21:10:00.130",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "9Router is an AI router & token saver. From 0.4.30 until 0.4.37, 9Router's src/proxy.js middleware did not protect /api/cli-tools/* and /api/mcp/*, allowing unauthenticated registration of customPlugins through src/app/api/cli-tools/cowork-settings/route.js and command execution through the MCP bridge. This vulnerability is fixed in 0.4.37."
},
{
"lang": "es",
"value": "9Router es un router de IA y ahorrador de tokens. Desde la versión 0.4.30 hasta la 0.4.37, el middleware src/proxy.js de 9Router no protegía /api/cli-tools/* y /api/mcp/*, permitiendo el registro no autenticado de customPlugins a través de src/app/api/cli-tools/cowork-settings/route.js y la ejecución de comandos a través del puente MCP. Esta vulnerabilidad está corregida en la versión 0.4.37."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "decolua",
"product": "9router",
"versions": [
{
"version": ">= 0.4.30, < 0.4.37",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
"baseScore": 10.0,
"baseSeverity": "CRITICAL",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "CHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 3.9,
"impactScore": 6.0
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-07-16T12:55:18.873125Z",
"id": "CVE-2026-46339",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "yes"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-78"
},
{
"lang": "en",
"value": "CWE-306"
}
]
}
],
"references": [
{
"url": "https://github.com/decolua/9router/commit/992f4db4a0d858bcc86b4786f2abab117a6ccdf8",
"source": "[email protected]"
},
{
"url": "https://github.com/decolua/9router/security/advisories/GHSA-fhh6-4qxv-rpqj",
"source": "[email protected]"
},
{
"url": "https://github.com/decolua/9router/security/advisories/GHSA-fhh6-4qxv-rpqj",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
}
]
}