NODE.JS GUIDE
Node.js Security Interview Guide
By the HireReadyAI team · 8 min read
Injection, auth, secrets, dependency risk and how to talk about threat modeling in interviews.
Common threats
- Injection (SQL, NoSQL, command)
- XSS and unsafe HTML rendering
- Broken auth and over-broad JWTs
- SSRF from user-provided URLs
- Secret leakage in logs and repos
App hardening
Validate input, parameterize queries, set security headers, use HTTPS, hash passwords properly, rotate secrets, and apply least-privilege DB users. Rate-limit auth endpoints. Never trust client-side checks alone.
Dependencies
Lockfiles, vulnerability scanning, and minimal dependency trees matter. Prefer well-maintained packages; remove abandoned ones. Pin versions in production builds.
Interview framing
Talk about threat modeling for your API surface, not a laundry list of OWASP acronyms. One concrete example from a past project beats ten buzzwords.