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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"
    }
  ]
}