CVE-2026-59801 9Router 0.4.41 - Unauthenticated API Exposure via /api/providers
Remote attackers can access provider management APIs without credentials to steal keys, redirect AI traffic, or delete connections due to missing authentication.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-59801?
CVE-2026-59801 is a critical missing authorization vulnerability in decolua 9Router, published on 13 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-306
Which versions are affected by CVE-2026-59801?
How do I fix CVE-2026-59801?
No fix has been published for CVE-2026-59801 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-59801 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-59801 exists.
Public exploit code: 1 Nuclei template.
Sources
Also known as GHSA-7f4f-856q-69wc.