PYSEC-2026-77

LangChain is a framework for building agents and LLM-powered applications. Prior to langchain-text-splitters 1.1.2, HTMLHeaderTextSplitter.splittextfromurl validated the initial URL using validatesafeurl but then performed the fetch with requests.get with redirects enabled the default. Because...

CVE-2026-41481 LangChain: HTMLHeaderTextSplitter.split_text_from_url SSRF Redirect Bypass

LangChain is a framework for building agents and LLM-powered applications. Prior to langchain-text-splitters 1.1.2, HTMLHeaderTextSplitter.splittextfromurl validated the initial URL using validatesafeurl but then performed the fetch with requests.get with redirects enabled the default. Because...

PT-2026-35086

Name of the Vulnerable Software and Affected Versions langchain-text-splitters versions prior to 1.1.2 Description In the HTMLHeaderTextSplitter.split text from url function, the initial URL is validated using validate safe url, but the subsequent fetch is performed via requests.get with redirect...