Liran Tal is an Israeli developer-advocate (formerly at Snyk, now at Lit Protocol) and one of the most authoritative independent voices on Node.js application security. He is the author of Essential Node.js Security and a long-running maintainer of multiple security-focused Node.js packages.
His CourseFlix listing carries Node.js Secure Coding (All 3 Node.js Security Training) — a comprehensive treatment of Node.js application security: the OWASP attack categories applied to Node.js specifically, dependency-vulnerability management, the JavaScript-specific gotchas (prototype pollution, eval, server-side request forgery), and the engineering patterns for shipping secure Node.js services.
Material is paid and aimed at Node.js developers responsible for application security. For broader content, see CourseFlix's Node.js category page.