CVE-2025-29927 Authorization Bypass in Next.js Middleware
On Friday morning, March 21, 2025, at 9:00 a.m. UTC, a security advisory identified as CVE-2025-29927 was published. It cited a critical 9.1 severity vulnerability for mainstream Next.js applications. Next.js versions considered vulnerable: We urge all developers to upgrade and deploy the latest version of Next.js that carries a fix to avoid suffering critical authorization bypass and other middleware logic circumvention.