CVE-2026-6734 undici vulnerable to cross-origin request routing via SOCKS5 proxy pool reuse

Impact: When using Socks5ProxyAgent, undici reuses a single connection pool across different origins without verifying that the pool's origin matches the requested origin. All requests are dispatched through the pool connected to the first origin, regardless of the intended destination. This caus...

CVE-2026-6734

Summary of CVE-2026-6734 : A vulnerability in undici’s Socks5ProxyAgent causes cross-origin request routing by reusing a single connection pool across multiple origins without verifying the pool origin. As a result, requests for origin B can be dispatched through the pool for origin A; credential...