CVE-2026-59801 PUBLISHED

9Router 0.4.41 - Unauthenticated API Exposure via /api/providers

Assigner: VulnCheck
Reserved: 07.07.2026 Published: 13.07.2026 Updated: 14.07.2026

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.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 9.3

Product Status

Vendor decolua
Product 9Router
Versions Default: unaffected
  • affected from 0 to 0.4.41 (incl.)

Credits

  • Ngô Tấn Tài (@newnol) reporter

References

Problem Types

  • Missing Authentication for Critical Function CWE