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CVE-2026-56679

CVE-2026-56679 · 9Router: Mass assignment in PATCH /api/settings allows authenticated authorization downgrade

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

9Router is an AI router & token saver. Prior to 0.5.4, the PATCH /api/settings endpoint writes the entire request body to persistent settings without a field whitelist, allowing an authenticated user to set security-critical fields such as requireLogin and disable authentication for the whole application, exposing protected routes such as /api/keys and /api/providers to unauthenticated access. This issue is reported as fixed in version 0.5.4.

CVSS 8.7 · High · EPSS 0.4% · Public exploit · Fix available

Published
Updated

Stack: node

Affected products and versions

  • 9router

    Versions
    • < 0.5.4: Affected

    No fix published

  • 9router npm

    Affected ranges
    • SEMVER: < 0.5.4

    Update to 0.5.4

Original sources

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