CVE-2026-59801
CriticalCVSS 9.8Exploitation Probability (EPSS)
Low risk41th percentile - higher than 41% of all known CVEs
Summary
9Router through version 0.4.41 contains an unauthenticated access vulnerability allowing remote attackers to interact with provider management API endpoints without credentials due to missing authentication middleware in Next.js API routes under src/app/api/providers/*. Attackers can enumerate, create, modify, or delete provider connections.
Risk Assessment
Attackers can 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.
Recommendation
Immediately upgrade 9Router to a version newer than 0.4.41 and implement authentication for all provider management API routes.
Original NVD description (English source)
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.