CVE-2025-29927: Authorization Bypass in Next.js Middleware

nextjs.org

CVE-2025-29927: Authorization Bypass in Next.js Middleware

nextjs.org

Nemeski@lemm.ee to

Next.js@programming.dev · 1 year ago

Postmortem on Next.js Middleware bypass - Vercel

nextjs.org

Last week, we published CVE-2025-29927 and patched a critical severity vulnerability in Next.js. Here’s our post-incident analysis and next steps.

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