LLMMedium
CVE-2025-65106: LangChain is a framework for building agents and LLM-powered applications. From versions 0.3.79 and …
- Occurred
- Nov 21, 2025
- Published
- Nov 21, 2025
- Source
- NVD CVE
Summary
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.
Tags
- CVE
- CVE-2025-65106
Classification
Category confidence: 95%
Severity confidence: 90%
Rationale: LangChain vulnerability in LLM framework allows template injection, affecting prompt systems but patched without reported mass harm.
Classifier: Qwen/Qwen3.5-35B-A3B-FP8