---
cve: "CVE-2026-49353"
severity: "HIGH"
cvss: 7.5
epss: "0.4%"
vendor: "decolua"
kev: false
exploited: false
published: "2026-07-15 21:16:53"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-27T13:37:43+02:00"
---

# CVE-2026-49353

> 7.5 HIGH · 🧪 PoC

## Beschreibung

9Router is an AI router & token saver. In 0.4.45 and earlier, 9Router's src/dashboardGuard.js local-only access gate used Host and Origin headers in isLocalRequest() to protect /api/mcp/*, /api/tunnel/*, and /api/cli-tools/*, allowing header spoofing in reverse proxy or tunnel deployments to reach MCP child process stdin paths.

## 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:C/C:L/I:H/A:N
```

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

## Patch verfügbar (OSV)

- 5e1c1261368e06dced1cbc650684561b2c8844db (Commit)
- bb86808582067e4fc6f004508a919efb9970d1d5 (Commit)

## Referenzen

- <https://github.com/decolua/9router/security/advisories/GHSA-6g2f-w7g3-77vf>
- <https://github.com/decolua/9router/commit/5e1c1261368e06dced1cbc650684561b2c8844db>
- <https://github.com/decolua/9router/commit/bb86808582067e4fc6f004508a919efb9970d1d5>
- <https://github.com/decolua/9router/releases/tag/v0.4.46>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-49353) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_