high8.6
CVE-2026-56677
9Router: Authenticated Server-Side Request Forgery (SSRF) via OIDC Provider Test Endpoint
Impact
9Router is an AI router & token saver. In 0.5.4 and earlier, the POST /api/auth/oidc/test endpoint in src/app/api/auth/oidc/test/route.js passes the user-controlled issuerUrl parameter to fetchOidcDiscovery() in src/lib/auth/oidc.js without restricting private or loopback destinations, allowing unauthenticated attackers when dashboard login is disabled to scan internal services and reflect OIDC discovery fields including token_endpoint and jwks_uri.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | 9router | <= 0.5.4 | none recorded |