CVE-2025-31137 Remix and React Router allow URL manipulation via Host / X-Forwarded-Host headers

React Router is a multi-strategy router for React bridging the gap from React 18 to React 19. There is a vulnerability in Remix/React Router that affects all Remix 2 and React Router 7 consumers using the Express adapter. Basically, this vulnerability allows anyone to spoof the URL used in an...