NPM: 9Router has a Login Brute-Force Lockout Bypass via Spoofable X-9r-Real-Ip Header

NPM: 9Router has a Login Brute-Force Lockout Bypass via Spoofable X-9r-Real-Ip Header vulnerability discovered by ? in WordPress Npm 9router versions = 0.5.4...

GHSA-32GC-64M7-HJ7V 9Router has a Login Brute-Force Lockout Bypass via Spoofable X-9r-Real-Ip Header

Summary 9router enforces a progressive login lockout 5 failed attempts → temporary 30s+ lock keyed on the client IP. The client IP used for this limiter is taken from the X-9r-Real-Ip request header, which is intended to be set only by the bundled custom-server.js layer from the unspoofable TCP...

EUVD-2026-84542

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 use the client-supplied X-9r-Real-Ip value as the bucket key in getClientIp, checkLock, and recordFail in src/lib/auth/loginLimiter.js fo...