CVE-2026-56678

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 v3 6.4 MEDIUM

6.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.1 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/decolua/9router/commit/126aa244c5b51b74ab8c7594e3418fcf4437bf6f
https://github.com/decolua/9router/releases/tag/v0.5.6
https://github.com/decolua/9router/security/advisories/GHSA-6mwv-4mrm-5p3m
https://github.com/decolua/9router/security/advisories/GHSA-6mwv-4mrm-5p3m

Configurations

No configuration.

History

No history.

Information

Published : 2026-07-15 21:16

Updated : 2026-07-16 14:16

NVD link : CVE-2026-56678

Mitre link : CVE-2026-56678

CVE.ORG link : CVE-2026-56678

JSON object : View

Products Affected

No product.

CWE

CWE-20

Improper Input Validation

CWE-918

Server-Side Request Forgery (SSRF)

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