Medium severity5.9NVD Advisory· Published Oct 23, 2026

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.

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Affected products

Netboxlabs/netbox-mcp-serverllm-create
Range: <1.2.1

Patches

Vulnerability mechanics

References

github.com/netboxlabs/netbox-mcp-server/releases/tag/v1.2.1nvd
github.com/netboxlabs/netbox-mcp-server/security/advisories/GHSA-5qg7-j8mr-9477nvd

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cvss	0.384
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000