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Back to active CVEs
Medium · CVSS 5.9CVE-2026-57207

NetBox MCP Server: HTTP transport exposes all NetBox data without authenticationCVE-2026-57207

Answer in brief

CVE-2026-57207 records a Medium severity (CVSS 5.9) vulnerability in NetBox MCP Server: HTTP transport exposes all NetBox data without authentication. The current sources do not mark it as known exploited. The current feed maps netboxlabs/netbox-mcp-server (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 23, 2026Updated Oct 23, 2026Source checked Oct 23, 2026First seen by HOL Oct 23, 2026Material review Oct 23, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.9
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 5.9. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps netboxlabs/netbox-mcp-server (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
netboxlabs/netbox-mcp-servergeneric<1.2.11.2.1

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for netboxlabs/netbox-mcp-server.
  2. 2Review the reported fix. Update netboxlabs/netbox-mcp-server to 1.2.1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 23, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 23, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 23, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • DJI CrystalSky ZS600C ships ADB without authentication (ro.adb.secure=0)Also CWE-306
  • Unauthenticated SSRF and local file inclusion via DownloadTaskEndpoint WebSocket in Goobi viewerAlso CWE-306
  • Goobi viewer: WebSocket endpoints lack server-side authentication and origin validationAlso CWE-306

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-306, CWE-1059
Source
CVE List V5
Source checked
Oct 23, 2026
References
2 linked sources
Open source record