---
cve: "CVE-2026-56678"
severity: "MEDIUM"
cvss: 6.4
epss: "0.3%"
vendor: "decolua"
kev: false
exploited: false
published: "2026-07-15 21:16:55"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-26T20:16:26+02:00"
---

# CVE-2026-56678

> 6.4 MEDIUM · 🧪 PoC

## Beschreibung

9Router is an AI router & token saver. Prior to 0.5.6, the Kiro API-key validation endpoint POST /api/oauth/kiro/api-key builds an upstream URL using a user-controlled region value, allowing an authenticated attacker to supply a crafted region such as kiro-canary.local:8443# and cause 9Router to send the Kiro validation request to an attacker-controlled host while forwarding the submitted Kiro API key as an Authorization header. This issue is fixed in version 0.5.6.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 126aa244c5b51b74ab8c7594e3418fcf4437bf6f (Commit)
- 584cf66a70a99dd9b400cbfaf72b98066c4e633d (Commit)

## Referenzen

- <https://github.com/decolua/9router/security/advisories/GHSA-6mwv-4mrm-5p3m>
- <https://github.com/decolua/9router/commit/126aa244c5b51b74ab8c7594e3418fcf4437bf6f>
- <https://github.com/decolua/9router/releases/tag/v0.5.6>
- <https://nvd.nist.gov/vuln/detail/CVE-2026-56678>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-56678) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_