AI-Generated Backends Almost Always Get CORS Wrong
📰 Dev.to AI
AI-generated backends often misconfigure CORS, posing a security risk for authenticated APIs
Action Steps
- Review AI-generated backend code for CORS configuration
- Check if the CORS policy is too permissive (e.g., wildcard policy)
- Add configuration to restrict CORS to specific domains or origins
Who Needs to Know This
Backend developers and security teams benefit from understanding CORS configuration to prevent credential theft vectors, especially when using JWT auth or sessions
Key Insight
💡 AI-generated backends require manual review and configuration to ensure secure CORS policies
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🚨 AI-generated backends often get CORS wrong, posing a security risk! 🚨
Key Takeaways
AI-generated backends often misconfigure CORS, posing a security risk for authenticated APIs
Full Article
TL;DR AI editors output app.use(cors()) with zero config by default - that's a wildcard CORS policy On unauthenticated public APIs this is fine. On anything with sessions or JWT auth, it's a credential theft vector Three lines fix it, but you have to know to look I was reviewing a Node.js API a friend built last month. Express backend, JWT auth, clean structure. The AI had written basically everything from scratch in a weekend. It
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