Express apps deployed with default settings expose fingerprinting headers (X-Powered-By), lack security headers, and commonly ship known-vulnerable dependencies.

express · verified Jul 7, 2026

Fix: Use helmet to set security headers, disable/obscure X-Powered-By, enforce TLS, set cookie security options (httpOnly, secure), and audit dependencies for known vulnerabilities — all per Express's own security best-practices doc rather than hand-rolled header code.

securityhttp-headersnodejs

References