CVE-2025-65106

Fixed in a distro release EPSS <1%CVSS 8.3

LangChain is a framework for building agents and LLM-powered applications. From versions 0.3.79 and prior and 1.0.0 to 1.0.6, a template injection vulnerability exists in LangChain's prompt template system that allows attackers to access Python object internals through template syntax. This vulnerability affects applications that accept untrusted template strings (not just template variables) in ChatPromptTemplate and related prompt template classes. This issue has been patched in versions 0.3.80 and 1.0.7.

Published 2025-11-21 · CVE record · OSV

Products: langchain-ai langchain

Fixed upstream

Distro releases