The Security Bug Every Node.js Developer Ships to Production

Short summary

Tutorial on five critical Node.js security vulnerabilities that consistently reach production undetected: SQL injection via raw queries, secrets committed to git, decoding JWTs instead of verifying them, missing rate limiting on auth endpoints, and verbose error messages. Each vulnerability includes before/after code patterns and real-world exploitation examples. Most security bugs aren't sophisticated—they're simply cases nobody anticipated during development.

• •SQL injection, exposed secrets, unverified JWT tokens, no rate limiting, and verbose errors are five critical Node.js vulnerabilities regularly shipped to production
• •Each issue includes code examples showing vulnerable patterns alongside secure fixes
• •Most security breaches result from unanticipated edge cases, not sophisticated attacks—ask 'what if?' before shipping user-facing endpoints

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