Why Cursor Keeps Generating Wildcard CORS -- And How to Fix It

📰 Dev.to · Charles Kern

Learn why AI editors like Cursor generate wildcard CORS by default and how to fix it to improve web security

intermediate Published 11 Apr 2026
Action Steps
  1. Check the CORS configuration in your AI editor
  2. Identify the resources that need to be accessed across domains
  3. Configure CORS to only allow specific domains and methods
  4. Test the CORS configuration to ensure it is working as expected
  5. Monitor and update the CORS configuration as needed
Who Needs to Know This

Web developers and security teams can benefit from understanding how to configure CORS properly to prevent security vulnerabilities

Key Insight

💡 Wildcard CORS can leave your web application vulnerable to security threats, so it's essential to configure it properly

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Improve web security by fixing wildcard CORS issues in AI editors like Cursor!
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