Bug 2416504 (CVE-2025-65106) - CVE-2025-65106 langchain-core: LangChain Vulnerable to Template Injection via Attribute Access in Prompt Templates
Summary: CVE-2025-65106 langchain-core: LangChain Vulnerable to Template Injection via...
Keywords:
Status: NEW
Alias: CVE-2025-65106
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-11-21 22:01 UTC by OSIDB Bzimport
Modified: 2025-11-25 16:44 UTC (History)
41 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2025-11-21 22:01:36 UTC 
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.
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