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LangChain MongoDB provides integrations between MongoDB, Atlas, LangChain, and LangGraph. Prior to langgraph-checkpoint-mongodb 0.3.0 and langgraph-store-mongodb 0.4.0, MongoDBSaver.list(), MongoDBSaver.alist(), and MongoDBStore.search() incorporate filter dictionaries into MongoDB queries without recursively rejecting keys prefixed with $. An authenticated caller who controls a filter argument through HTTP query parameters, request body fields, or agent tool arguments can inject MongoDB Query Language operators such as $regex or $where. In a multi-tenant deployment that uses the filter to enforce per-user or per-tenant isolation, injected operators can bypass intended equality filtering and expose other tenants' checkpoint or store data. Filters constructed entirely from trusted server-side values have lower practical risk. This issue is fixed in langgraph-checkpoint-mongodb 0.3.0 and langgraph-store-mongodb 0.4.0.
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Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "langchain-ai",
"product": "langchain-mongodb",
"versions": [
{
"version": "< 0.4.0",
"status": "affected"
}
]
}Vendor product
Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "langchain-ai",
"product": "langgraph-checkpoint-mongodb",
"versions": [
{
"version": "< 0.3.0",
"status": "affected"
}
]
}Vendor product
Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "langchain-ai",
"product": "langgraph-store-mongodb",
"versions": [
{
"version": "< 0.4.0",
"status": "affected"
}
]
}Original source record · Cite this exact observation · Complete original publisher JSON