Langchain.js vulnerabilities

2 known vulnerabilities in Langchain.js from LangChain. 2 are rated high or critical. Each entry lists the affected versions and the release that fixes it, where the vendor has published one.

Latest first

• 9.1 Critical severity

  langchainjs: Deserialization of Untrusted Data

  CVE-2025-68665Dec 23, 2025LangChain AI

  LangChain is a framework for building LLM-powered applications. Prior to @langchain/core versions 0.3.80 and 1.1.8, and prior to langchain versions 0.3.37 and 1.2.3, a serialization injection vulnerability exists in LangChain JS's toJSON() method (and subseque

• 9.1 Critical severity

  langchain-ai/langchainjs: Improper Limitation of a Pathname to a Restricted Directory

  CVE-2024-7774Oct 29, 2024LangChain AI

  A path traversal vulnerability exists in the `getFullPath` method of langchain-ai/langchainjs version 0.2.5. This vulnerability allows attackers to save files anywhere in the filesystem, overwrite existing text files, read `.txt` files, and delete files. The v