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CVE-2026-49352

CVE-2026-49352 · 9Router: Hardcoded Default fallback JWT Secret Allows Authentication Bypass

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

9Router is an AI router & token saver. From 0.2.21 until 0.4.44, 9Router used the hardcoded fallback JWT secret 9router-default-secret-change-me in src/app/api/auth/login/route.js, src/middleware.js, and later src/lib/auth/dashboardSession.js, allowing attackers to forge an auth_token cookie when JWT_SECRET was unset. This issue is fixed in version 0.4.44

CVSS 9.8 · Critical · EPSS 0.6% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • 9router

    Versions
    • >= 0.2.21, < 0.4.44: Affected

    No fix published

  • 9router npm

    Affected ranges
    • SEMVER: ≥ 0.2.21, < 0.4.45

    Update to 0.4.45

Original sources

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