---
cve: "CVE-2026-57207"
severity: "MEDIUM"
cvss: 5.9
epss: "0.3%"
vendor: "netboxlabs"
kev: false
exploited: false
published: "2026-10-23 13:40:31"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-11-02T05:49:18+01:00"
---

# CVE-2026-57207

> 5.9 MEDIUM · 🧪 PoC

## Beschreibung

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.

## CNA-Record (Kanon, cvelistV5)

- CNA: **GitHub_M**
- State: PUBLISHED
- Stand: 2026-10-30 18:16:11
- CNA-CVSS: **5.9** (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **poc**
  - Automatable: **no**
  - Technical Impact: **partial**

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Hoch | good |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Keine | good |
| A Verfügbarkeit | Keine | good |

## Schwachstellen-Klasse

- **CWE-1059** — Insufficient Technical Documentation
  The product does not contain sufficient technical or engineering documentation (whether on paper or in electronic form) that contains descriptions of all of the relevant software/hardware elements of the product.
- **CWE-306** — Missing Authentication for Critical Functionality
  The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

## Patch verfügbar (OSV)

- 8d02e9a4fe0dcaba9aab167b88504c842702b522 (Commit)

## Referenzen

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

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-57207/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_