---
cve: "CVE-2026-62312"
severity: "HIGH"
cvss: 8.8
epss: "1.3%"
vendor: "decolua"
kev: false
exploited: false
published: "2026-07-15 21:16:55"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-25T03:14:57+02:00"
---

# CVE-2026-62312

> 8.8 HIGH · 🧪 PoC

## Beschreibung

9Router is an AI router & token saver. Prior to 0.5.2, 9Router allows a remote authenticated attacker to achieve arbitrary code execution on the host operating system by combining a Host header bypass of localhost-only routes with unvalidated MCP plugin args passed to child_process.spawn(), allowing malicious custom plugins to execute commands through /api/mcp//sse. This issue is fixed in version 0.5.2.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- da667836cc7584bea0edd893de1d590c9ea279dc (Commit)
- 5da508af3c3dc6e920286141d1a4ddcd4ec245db (Commit)

## Referenzen

- <https://github.com/decolua/9router/security/advisories/GHSA-63p9-g54h-prrp>
- <https://github.com/decolua/9router/commit/da667836cc7584bea0edd893de1d590c9ea279dc>
- <https://github.com/decolua/9router/releases/tag/v0.5.2>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-62312) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_