CVE-2026-88829 Busybox: busybox: http request smuggling via pipelined requests in httpd reverse proxy

A flaw was found in BusyBox httpd's reverse proxy feature. When the proxy is configured to forward requests matching a URL prefix to a backend server, only the first HTTP request on a TCP connection has its path rewritten. An attacker can send a pipelined second request that is relayed verbatim t...