CVE-2026-103004 next.js cache leak on warm `use cache` handlers accessing root param

Next.js versions from 16.3.0 to 16.3.7 warm use cache handlers using next/root-params and can leak their return value to pages with different root params. With Cache Components enabled cacheComponents: true, a 'use cache' function that calls another 'use cache' function that reads a root param ca...