Next.js 16 proxy.ts Migration: From middleware.ts

📰 Dev.to · Iurii Rogulia

Learn how to migrate from middleware.ts to proxy.ts in Next.js 16 and ensure secure authentication with a Data Access Layer

intermediate Published 10 Jun 2026
Action Steps
  1. Migrate existing middleware.ts files to proxy.ts in Next.js 16
  2. Understand the changes and improvements in Next.js 16 related to proxy.ts
  3. Implement a Data Access Layer for secure authentication
  4. Test and verify the migration to ensure no functionality is broken
  5. Configure the new proxy.ts to handle requests correctly
  6. Apply security best practices to prevent vulnerabilities like CVE-2025-29927
Who Needs to Know This

Backend engineers and developers who use Next.js will benefit from this migration guide to ensure their applications are secure and up-to-date. This knowledge is crucial for teams working with Next.js to prevent vulnerabilities like CVE-2025-29927.

Key Insight

💡 Migrating from middleware.ts to proxy.ts in Next.js 16 is crucial for securing your application against vulnerabilities like CVE-2025-29927

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🚀 Migrate to Next.js 16's proxy.ts for improved security and performance!

Key Takeaways

Learn how to migrate from middleware.ts to proxy.ts in Next.js 16 and ensure secure authentication with a Data Access Layer

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