Published onFebruary 2, 2026Vercel Blocked My Deploy for a Next.js CVE. Here's the Fix I Used.nextjsvercelsecuritybuild-failuresreact-server-componentscveVercel blocked my deployment because my Next.js version was vulnerable to CVE-2025-66478. Here's what the error means, how to pick a patched version, and how to redeploy safely.