{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "0.5.2"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "da667836cc7584bea0edd893de1d590c9ea279dc"
            },
            {
              "fixed": "5da508af3c3dc6e920286141d1a4ddcd4ec245db"
            }
          ],
          "repo": "https://github.com/decolua/9router",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-63p9-g54h-prrp"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-78"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62312.json"
  },
  "details": "9Router is an AI router \u0026 token saver. Prior to 0.5.2, 9Router allows a remote authenticated attacker to achieve arbitrary code execution on the host operating system by combining a Host header bypass of localhost-only routes with unvalidated MCP plugin args passed to child_process.spawn(), allowing malicious custom plugins to execute commands through /api/mcp//sse. This issue is fixed in version 0.5.2.",
  "id": "CVE-2026-62312",
  "modified": "2026-07-18T03:41:45.755068577Z",
  "published": "2026-07-15T20:53:18.302Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/decolua/9router/releases/tag/v0.5.2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62312.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/decolua/9router/security/advisories/GHSA-63p9-g54h-prrp"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-62312"
    },
    {
      "type": "FIX",
      "url": "https://github.com/decolua/9router/commit/da667836cc7584bea0edd893de1d590c9ea279dc"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "9Router: Authenticated RCE via Unvalidated MCP Plugin Arguments"
}