Improper Neutralization of Special Elements in Data Query Logic Affecting @langchain/langgraph-checkpoint-mongodb package, versions <1.3.1
Threat Intelligence
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Start learning- Snyk IDSNYK-JS-LANGCHAINLANGGRAPHCHECKPOINTMONGODB-17339819
- published15 Jun 2026
- disclosed12 Jun 2026
- creditNagendhra Madishetti
Introduced: 12 Jun 2026
CVE-2026-48121 (opens in a new tab)How to fix?
Upgrade @langchain/langgraph-checkpoint-mongodb to version 1.3.1 or higher.
Overview
@langchain/langgraph-checkpoint-mongodb is a LangGraph
Affected versions of this package are vulnerable to Improper Neutralization of Special Elements in Data Query Logic in the MongoDBSaver.getTuple() function. An attacker can access checkpoint data belonging to other tenants by injecting specially crafted objects as identifier fields, which are interpreted as query operators in MongoDB queries.