{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "0"
                  },
                  {
                    "fixed": "1.2.1"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StringRangeExpression"
              },
              {
                "original_tag": "v1.2.1",
                "range": [
                  {
                    "fixed": "8d02e9a4fe0dcaba9aab167b88504c842702b522"
                  }
                ],
                "source": "REFERENCES_TAG"
              },
              {
                "range": [
                  {
                    "introduced": "0"
                  },
                  {
                    "fixed": "1.2.1"
                  }
                ],
                "source": "DESCRIPTION"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8d02e9a4fe0dcaba9aab167b88504c842702b522"
            }
          ],
          "repo": "https://github.com/netboxlabs/netbox-mcp-server",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-5qg7-j8mr-9477"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-1059",
      "CWE-306"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57207.json"
  },
  "details": "NetBox MCP Server is a simple read-only Model Context Protocol server for NetBox. Prior to version 1.2.1, when running with TRANSPORT=http, the MCP server has no authentication on the HTTP endpoint. Any client that can reach the port gets a valid MCP session and full access to all four NetBox tools - no token or credential needed. This issue has been patched in version 1.2.1.",
  "id": "CVE-2026-57207",
  "modified": "2026-11-01T02:30:42.454979781Z",
  "published": "2026-10-23T13:40:31.164Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/netboxlabs/netbox-mcp-server/releases/tag/v1.2.1"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57207.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/netboxlabs/netbox-mcp-server/security/advisories/GHSA-5qg7-j8mr-9477"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-57207"
    }
  ],
  "schema_version": "1.9.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "NetBox MCP Server: HTTP transport exposes all NetBox data without authentication"
}