#n8n webhook security

A webhook URL is just a URL, and n8n has no built-in way to confirm a request actually came from Stripe, Twilio, or GitHub rather than anyone who found it. Here is how to build signature verification with a Code node, the raw-body Base64 decoding gotcha that breaks most first

Muhammad Qasim Hammad·August 21, 2026·7 min

An open n8n Webhook node answers anyone who finds the URL. This hardening guide covers the node's authentication options, HMAC signature checks on the payload, IP and origin allow-listing, rate limiting at a reverse proxy, and why the test URL never belongs in production.

Muhammad Qasim Hammad·July 30, 2026·8 min