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9.3
CVE-2026-59801: 9Router 0.4.41 - Unauthenticated Access to Provider API
CVE-2026-59801
CVE-2026-59801
Summary
An attacker can access and manipulate provider connections without a password, potentially exposing sensitive information and disrupting service. This vulnerability affects 9Router versions up to 0.4.41. To protect your system, update 9Router to the latest version or apply the necessary security patches.
What to do
No fix is available yet. Check with your software vendor for updates.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| decolua | 9router | <= 0.4.41 |
Original title
9Router 0.4.41 - Unauthenticated API Exposure via /api/providers
Original description
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.
mitre CVSS3.1
9.8
Vulnerability type
CWE-306
Missing Authentication for Critical Function
Published: 13 Jul 2026 · Updated: 16 Jul 2026 · First seen: 13 Jul 2026