9Router 0.4.41 - Unauthenticated API Exposure via /api/providers
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.
describes (2)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-62328US | —OT elevated | — | ||
9Router through version 0.4.41 contain an unauthenticated information disclosure vulnerability that allows remote attackers to access sensitive user data by sending requests to unp… | ||||
| CVE-2026-62327US | —OT elevated | — | ||
9Router through version 0.4.41 contains an unauthenticated information disclosure vulnerability that allows remote attackers to retrieve plaintext API keys for all connected AI pro… | ||||
references
External citations — patches, advisories, analysis.
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59801.jsonADVISORY
- https://github.com/decolua/9routerPACKAGE
- https://github.com/decolua/9router/security/advisories/GHSA-vjc7-jrh9-9j86ADVISORY
- https://nvd.nist.gov/vuln/detail/CVE-2026-59801ADVISORY
- https://www.vulncheck.com/advisories/9router-unauthenticated-api-exposure-via-api-providersADVISORY
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