CVE-2024-8616: h2o

High severity, CVSS 8.2. EPSS: 0.5% chance of exploitation in the next 30 days.

In h2oai/h2o-3 version 3.46.0, the `/99/Models/{name}/json` endpoint allows for arbitrary file overwrite on the target server. The vulnerability arises from the `exportModelDetails` function in `ModelsHandler.java`, where the user-controllable `mexport.dir` parameter is used to specify the file path for writing model details. This can lead to overwriting files at arbitrary locations on the host system.

Affected products

• h2o h2o: version 3.46.0 only

Published 2025-03-20. Last modified 2026-06-17.