CVE-2026-56675

9Router is an AI router & token saver. Prior to 0.5.2, 9router treats loopback requests as trusted and allows /v1/* access without an API key, so a same-host reverse proxy that forwards public traffic to the backend through 127.0.0.1 causes src/dashboardGuard.js to misclassify external requests as local. A remote unauthenticated attacker can access /v1 APIs such as /v1/models and may abuse configured upstream provider credentials through /v1 proxy endpoints depending on enabled providers. This issue is fixed in version 0.5.2.

• CWE-287
• CWE-290
• CWE-306
• CWE-441

• https://github.com/decolua/9router/commit/da667836cc7584bea0edd893de1d590c9ea279dc
• https://github.com/decolua/9router/releases/tag/v0.5.2
• https://github.com/decolua/9router/security/advisories/GHSA-x5c9-v98j-722r

Published

Jul 10, 2026

Last Modified

Jul 10, 2026

Status

Deferred

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