Vulnerability library
Security checkJune 12, 2026

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

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Description

A NoSQL injection vulnerability existed in MongoDBSaver where checkpoint identifier fields from config.configurable were used in MongoDB queries without strict type enforcement.

Recommendation

Update the @langchain/langgraph-checkpoint-mongodb package to the latest compatible version. Followings are version details:

  • Affected version(s): <= 1.3.0
  • Patched version(s): 1.3.1

References

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Related Issues

See something that needs correcting? Let us knowUpdated June 12, 2026