How to Add Memory Security to Your LangChain Agent in 5 Minutes

Why Your Agent's Memory Needs Security

If you're building LangChain agents with persistent memory (ConversationBufferMemory, RedisChatMessageHistory, etc.), every stored message is a potential attack vector. An attacker who can influence what gets written to memory — via prompt injection, tool output poisoning, or context manipulation — can corrupt your agent's behavior across all future sessions.

This is OWASP ASI06: Agent Memory Poisoning, and it's trivial to exploit in the wild.

The Fix: 3 Lines of Code

pip install agent-memory-guard