{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.0.2"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2af690f894b6e35f5f21190fdab1505f023a5272"
            },
            {
              "fixed": "e0967e65cd381374682751da630e2cc2fb3a9c34"
            }
          ],
          "repo": "https://github.com/ibm/mcp-context-forge",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-m8rv-5m6m-32ff"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-1188",
      "CWE-287",
      "CWE-321",
      "CWE-798"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53709.json"
  },
  "details": "MCP Context Forge is an MCP gateway and administrative platform. Prior to 1.0.2, mcpgateway/config.py and .env.example ship a known JWT_SECRET_KEY, while verify_jwt_token() accepts HS256 tokens signed with that key and get_current_user() creates a platform administrator when the token subject matches PLATFORM_ADMIN_EMAIL and REQUIRE_USER_IN_DB is false. A remote unauthenticated attacker can therefore mint accepted administrator tokens without a database account. While the vulnerable signing key remains configured and the platform-admin bootstrap remains enabled, forged access survives password rotation, account deletion, and session revocation, allowing administrative disclosure, modification, and service disruption. This issue is fixed in version 1.0.2.",
  "id": "CVE-2026-53709",
  "modified": "2026-10-15T02:30:48.436068973Z",
  "published": "2026-10-13T14:32:12.137Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/IBM/mcp-context-forge/releases/tag/v1.0.2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53709.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/IBM/mcp-context-forge/security/advisories/GHSA-m8rv-5m6m-32ff"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53709"
    },
    {
      "type": "FIX",
      "url": "https://github.com/IBM/mcp-context-forge/commit/2af690f894b6e35f5f21190fdab1505f023a5272"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "MCP Context Forge: Hardcoded default JWT_SECRET_KEY shipped in source and .env.example enables pre-authentication platform admin token forgery"
}