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CVE-2026-56678

CVE-2026-56678 · 9Router: Kiro region injection allows authenticated SSRF with Authorization header forwarding

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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 6.4 · Medium · EPSS 0.2% · Public exploit · Fix available

Published
Updated

Stack: node

Affected products and versions

  • 9router

    Versions
    • < 0.5.6: Affected

    No fix published

  • 9router npm

    Affected ranges
    • SEMVER: < 0.5.6

    Update to 0.5.6

Original sources

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