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CVE-2026-59801

CVE-2026-59801 · 9Router 0.4.41 - Unauthenticated API Exposure via /api/providers

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

9Router through version 0.4.41 contains an unauthenticated access vulnerability that allows remote attackers to interact with provider management API endpoints by sending requests without any credentials due to missing authentication middleware in the Next.js API routes under src/app/api/providers/*. Attackers can enumerate, create, modify, or delete provider connections to expose partial credentials, OAuth tokens, and API keys, redirect AI traffic to attacker-controlled servers, or cause complete denial of service by deleting all provider connections.

CVSS 9.3 · Critical · EPSS 2.6% · Public exploit

Published
Updated

Stack: node

Affected products and versions

  • 9router

    Versions
    • ≥ 0, ≤ 0.4.41: Affected (semver)

    No fix published

  • 9router npm

    Affected ranges
    • SEMVER: ≤ 0.4.41

    No fix published

Original sources

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