{"id":"CVE-2026-57207","title":"NetBox MCP Server: HTTP transport exposes all NetBox data without authentication","summary":"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 get…","severity":"medium","cvss":5.9,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","cvssSource":"cna","cwe":["CWE-306","CWE-1059"],"vendor":"netboxlabs","product":"netbox-mcp-server","affected":["netbox-mcp-server < 1.2.1"],"published":"2026-10-23","updated":"2026-10-23","sourceUpdated":"2026-10-23T13:40:31.164Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-57207","references":[{"url":"https://github.com/netboxlabs/netbox-mcp-server/security/advisories/GHSA-5qg7-j8mr-9477","label":"https://github.com/netboxlabs/netbox-mcp-server/security/advisories/GHSA-5qg7-j8mr-9477"},{"url":"https://github.com/netboxlabs/netbox-mcp-server/releases/tag/v1.2.1","label":"https://github.com/netboxlabs/netbox-mcp-server/releases/tag/v1.2.1"}],"tags":["cve.org"],"ingestedAt":"2026-10-23T14:28:08.701Z","slug":"CVE-2026-57207","body":"## Overview\n\nNetBox 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.\n\n## Affected\n\n- `netbox-mcp-server < 1.2.1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":32,"depthScoreParts":{"impact":32.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}