Dev.to
6/22/2026

Why Vibecoded Apps Fail Security Audits (and the 4 Fixes That Matter Most)
Short summary
AI code generators often skip security hardening, leaving gaps in input validation, auth token storage, CORS policies, and secrets management. The post outlines four specific fixes: use explicit validation prompts, review auth implementation against OWASP standards, set strict CORS whitelisting, and implement secrets management tooling.
- •AI-generated code handles happy paths but skips security constraints like input sanitization and length limits
- •Four critical gaps: missing validation, unsafe token storage (localStorage vs httpOnly), permissive CORS defaults, and hardcoded secrets
- •Fixes are low-effort: explicit prompts for validation, OWASP checklist review, strict CORS policy, and secrets manager setup
Generated with AI, which can make mistakes.
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