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OpenAdvisories
Medium · 5.9 CVE-2026-57207 EUVD-2026-108992

NetBox MCP Server: HTTP transport exposes all NetBox data without authentication

Published Oct 23, 2026 · Updated Oct 30, 2026 · Assigned by GitHub_M

Description

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.

Affected products

VendorProductAffectedFixed
netboxlabs netbox-mcp-server < 1.2.1 —

References