9router <=0.5.4 - Authentication Bypass

9Router prior to 0.5.6 contains an authentication bypass caused by trusting client-supplied X-9r-Real-Ip header in src/dashboardGuard.js, letting remote unauthenticated attackers access local API routes and consume resources, exploit requires bypassing API-key validation via header manipulation...

CVE-2026-56681: Reliance on Untrusted Inputs in a Security Decision

9Router is an AI router & token saver. Prior to 0.5.6, 9Router deployments that allow requests to reach Next.js without the sanitizing custom-server.js wrapper trust the client-supplied X-9r-Real-Ip header in src/dashboardGuard.js when isLocalRequest decides whether canAccessPublicLlmApi may skip...