Is CVE-2026-57207 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-57207?

CVE-2026-57207 has a CVSS v3 severity of MEDIUM (5.9).

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CVE-2026-57207

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.