Critical Middleware Vulnerability in Next.js (CVE-2025-29927)
Researchers have discovered a critical security vulnerability in Next.js that allows attackers to easily bypass middleware authorization measures. The vulnerability, designated CVE-2025-29927, was discovered by Rachid Allam and Yasser Allam and since assigned a base CVSS score of 9.1. By skipping checks for authorization cookies, attackers can potentially gain access to restricted areas of applications like admin tools and dashboards.