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…

PriorityP340medium6.4CVSS 3.1

AVNACLPRLUINSCCLILAN

EPSS

0.17%

6.8th percentile

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.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
decolua	9router	< 0.5.6	0.5.6

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