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Marc-André Bombeck
d6d0f7e73f
The client-IP resolver trusted one forwarding hop by default and read the rightmost X-Forwarded-For entry. Next fills that header with the socket's address only when the request carries none, so a caller reaching the published port directly could send its own and choose a fresh address per request: every per-IP limit (sign-in, second factor, passkey, share unlock, webhooks) became per-request, and sessions, the audit log and sign-in notices recorded the chosen address. The server now writes each connection's own peer address into an internal header from Node's http.server.request.start diagnostics channel, installed at boot and overwriting anything a caller sent under that name. The resolver reads forwarding headers only when that peer is loopback, private, unique-local or CGNAT, where a reverse proxy sits; a public peer is its own client address, and a log line says once that its forwarding headers were ignored. With TRUST_PROXY_HOPS=0 the peer is used instead of no address, so a directly exposed host no longer shares one bucket across all anonymous callers. Proxies on the same host, Docker network or tailnet need no change.