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FKIE_CVE-2026-49353

Vulnerability from fkie_nvd - Published: 2026-07-15 21:16 - Updated: 2026-07-16 16:19
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N
Summary
9Router is an AI router & token saver. In 0.4.45 and earlier, 9Router's src/dashboardGuard.js local-only access gate used Host and Origin headers in isLocalRequest() to protect /api/mcp/*, /api/tunnel/*, and /api/cli-tools/*, allowing header spoofing in reverse proxy or tunnel deployments to reach MCP child process stdin paths.
References
security-advisories@github.comhttps://github.com/decolua/9router/commit/5e1c1261368e06dced1cbc650684561b2c8844db
security-advisories@github.comhttps://github.com/decolua/9router/commit/bb86808582067e4fc6f004508a919efb9970d1d5
security-advisories@github.comhttps://github.com/decolua/9router/releases/tag/v0.4.46
security-advisories@github.comhttps://github.com/decolua/9router/security/advisories/GHSA-6g2f-w7g3-77vf
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/decolua/9router/security/advisories/GHSA-6g2f-w7g3-77vf
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "9router",
          "vendor": "decolua",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c= 0.4.45"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "9Router is an AI router \u0026 token saver. In 0.4.45 and earlier, 9Router\u0027s src/dashboardGuard.js local-only access gate used Host and Origin headers in isLocalRequest() to protect /api/mcp/*, /api/tunnel/*, and /api/cli-tools/*, allowing header spoofing in reverse proxy or tunnel deployments to reach MCP child process stdin paths."
    }
  ],
  "id": "CVE-2026-49353",
  "lastModified": "2026-07-16T16:19:10.110",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "LOW",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 4.7,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-49353",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-16T14:49:42.771907Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-15T21:16:53.870",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/decolua/9router/commit/5e1c1261368e06dced1cbc650684561b2c8844db"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/decolua/9router/commit/bb86808582067e4fc6f004508a919efb9970d1d5"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/decolua/9router/releases/tag/v0.4.46"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/decolua/9router/security/advisories/GHSA-6g2f-w7g3-77vf"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/decolua/9router/security/advisories/GHSA-6g2f-w7g3-77vf"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-290"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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