CVE-2026-48121 @langchain/langgraph-checkpoint-mongodb: NoSQL parameter injection in MongoDBSaver allows cross-tenant state access

@langchain/langgraph-checkpoint-mongodb provides a LangGraph.js CheckpointSaver implementation that uses MongoDB for storage. Versions 1.3.0 and below are vulnerable to NoSQL injection: checkpoint identifiers threadid, checkpointns, checkpointid from config.configurable are passed into MongoDB fi...

CVE-2026-48121 @langchain/langgraph-checkpoint-mongodb: NoSQL parameter injection in MongoDBSaver allows cross-tenant state access

@langchain/langgraph-checkpoint-mongodb provides a LangGraph.js CheckpointSaver implementation that uses MongoDB for storage. Versions 1.3.0 and below are vulnerable to NoSQL injection: checkpoint identifiers threadid, checkpointns, checkpointid from config.configurable are passed into MongoDB fi...

LangGraph has NoSQL parameter injection in MongoDBSaver, allowing cross-tenant state access

Summary A NoSQL injection vulnerability existed in MongoDBSaver where checkpoint identifier fields from config.configurable were used in MongoDB queries without strict type enforcement. In vulnerable versions, attacker-controlled object payloads for example MongoDB operators like $gt and $ne coul...

GHSA-98XF-R82G-9MHX LangGraph has NoSQL parameter injection in MongoDBSaver, allowing cross-tenant state access

Summary A NoSQL injection vulnerability existed in MongoDBSaver where checkpoint identifier fields from config.configurable were used in MongoDB queries without strict type enforcement. In vulnerable versions, attacker-controlled object payloads for example MongoDB operators like $gt and $ne coul...

PT-2026-48932

Name of the Vulnerable Software and Affected Versions @langchain/langgraph-checkpoint-mongodb versions prior to 1.3.1 Description A NoSQL injection issue exists in the MongoDBSaver.getTuple function. The software fails to enforce type validation for checkpoint identifiers passed via...