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...

SUSE CVE-2023-46229

LangChain before 0.0.317 allows SSRF via documentloaders/recursiveurlloader.py because crawling can proceed from an external server to an internal server...

VulnCheck KEV: CVE-2023-46229

LangChain before 0.0.317 allows SSRF via documentloaders/recursiveurlloader.py because crawling can proceed from an external server to an internal server...

PYSEC-2024-235

With the following crawler configuration:pythonfrom bs4 import BeautifulSoup as Soupurl = "https://example.com"loader = RecursiveUrlLoader url=url, maxdepth=2, extractor=lambda x: Soupx, "html.parser".textdocs = loader.loadAn attacker in control of the contents of https://example.com could place ...

CVE-2023-46229

LangChain before 0.0.317 allows SSRF via documentloaders/recursiveurlloader.py because crawling can proceed from an external server to an internal server...

PYSEC-2023-205

LangChain before 0.0.317 allows SSRF via documentloaders/recursiveurlloader.py because crawling can proceed from an external server to an internal server...