In h2oai/h2o-3 version 3.46.0.1, the `run_tool` command exposes classes in the `water.tools` package through the `ast` parser. This includes the `XGBoostLibExtractTool` class, which can be exploited to shut down the server and write large files to arbitrary directories, leading to a denial of service.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| h2o(PyPI) | 3.34.0.1 | N/A | N/A |
| ai.h2o:h2o-ext-xgboost(Maven) | 3.34.0.1 | N/A | N/A |
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