CVE-2026-27795 LangChain Community: redirect chaining can lead to SSRF bypass via RecursiveUrlLoader

LangChain is a framework for building LLM-powered applications. Prior to version 1.1.8, a redirect-based Server-Side Request Forgery SSRF bypass exists in RecursiveUrlLoader in @langchain/community. The loader validates the initial URL but allows the underlying fetch to follow redirects...