LangChain, LangGraph Flaws Expose Files, Secrets, Databases in Widely Used AI Frameworks

27 March 2026
Cybersecurity researchers have disclosed three security vulnerabilities impacting LangChain and LangGraph that, if successfully exploited, could expose filesystem data, environment secrets, and conversation history. Both LangChain and LangGraph are open-source frameworks that are used to build applications powered by Large Language Models (LLMs). LangGraph is built on the foundations of

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