gcdRadar
archive/Patch now/AIR-2026-1484
closedclosed 23 Oct 2026Patch now2 Disclosed vulnerabilityAI

CVE-2026-57207: NetBox MCP Server lacks HTTP endpoint authentication

NetBox MCP Server

Prior to version 1.2.1, the NetBox Model Context Protocol server running over HTTP lacks authentication on its endpoint. Any reachable client can obtain an active session and full access to NetBox tools without credentials.

disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why

CVSS
5.9
EPSS
<0.01 · top 66% · 2026-11-13
EPSS scores by FIRST
fix status
Fix status unknown
first report
23 Oct 2026
last update
23 Oct 2026
CVE ids
CVE-2026-57207other records

Timeline · 1

  1. 23 Oct 2026CVE-2026-57207: NetBox MCP Server is a simple read-only Model Context Protocol server for NetBox.

Sources · 1

Advisories and databases

  1. 2026-10-23
    CVE-2026-57207: NetBox MCP Server is a simple read-only Model Context Protocol server for NetBox.
    NVD · nvd.nist.gov/vuln/detail/CVE-2026-57207

Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.

Classification

lane
Patch now
AI role
Attack on AI
categories
Infrastructure vulnerability
severity
2 · Disclosed vulnerability
fix status
Fix status unknown
targets
Framework / tooling
owasp llm top 10
LLM03:2025 Supply Chain
mitre atlas
no technique for these categories
tags
mcpauthentication-bypass
dates
happened 23 Oct 2026 · first reported 23 Oct 2026
origin
NVD
Vulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
record
confidence 0.95 · created 2026-10-23 17:30Z · updated 2026-10-23 17:30Z

Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned

Copy a brief

This record as a short Markdown brief, for a ticket, a chat or a coding agent.

the brief as text
# CVE-2026-57207: NetBox MCP Server lacks HTTP endpoint authentication

https://gcdradar.vercel.app/incidents/cve-2026-57207-netbox-mcp-server-lacks-http-endpoint-authent · AIR-2026-1484 · closed 2026-10-23

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-10-23
- AI role: Attack on AI
- Products: NetBox MCP Server
- CVE ids: CVE-2026-57207
- CVSS: 5.9

## Summary

Prior to version 1.2.1, the NetBox Model Context Protocol server running over HTTP lacks authentication on its endpoint. Any reachable client can obtain an active session and full access to NetBox tools without credentials.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2026-10-23: CVE-2026-57207: NetBox MCP Server is a simple read-only Model Context Protocol server for NetBox. (https://nvd.nist.gov/vuln/detail/CVE-2026-57207)

## Sources

- 2026-10-23 NVD: CVE-2026-57207: NetBox MCP Server is a simple read-only Model Context Protocol server for NetBox. https://nvd.nist.gov/vuln/detail/CVE-2026-57207

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.

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