CVE-2026-55638: Decolua 9router

High severity, CVSS 8.6. EPSS: 0.6% chance of exploitation in the next 30 days.

9Router is an AI router & token saver. Prior to 0.5.2, 9router protects /v1, /v1beta, /api/v1, and /api/v1beta in src/dashboardGuard.js but omits /codex before next.config.mjs rewrites /codex/* to /api/v1/responses. A remote unauthenticated attacker can send requests to /codex/* to bypass the API-key gate and cause the server to make upstream provider calls using operator-stored LLM provider credentials. This issue is fixed in version 0.5.2.

Affected products

• Decolua 9router: before 0.5.2 (fixed in 0.5.2)

Published 2026-07-10. Last modified 2026-07-10.