Feed/CVE-2026-106119
CVE-2026-106119MEDIUMCVSS 0.0

CVE-2026-106119

Published Oct 6, 2026·Updated Oct 8, 2026

NVD Description

LangChain is a framework for building LLM-powered applications. Prior to 1.3.1, MongoDBChatMessageHistory does not enforce the documented string type for an untrusted structured session identifier at runtime, allowing the identifier to be interpreted as a MongoDB query condition rather than as a literal value when multiple users' histories are stored in a shared MongoDB collection. An attacker able to invoke chat-history operations can read, modify, or delete another user's stored conversation. Applications using authenticated, server-controlled string identifiers are not affected. This issue is fixed in version 1.3.1.

Affected Packages (1)

@langchain/mongodbNPM
Fixed in = 1.3.0

References

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