Description
The H2O machine learning platform uses "Iced" classes as the primary means of moving Java Objects around the cluster. The Iced format supports inclusion of serialized Java objects. When a model is deserialized, any class is allowed to be deserialized (no class whitelist). An attacker can construct a crafted Iced model that uses Java gadgets and leads to arbitrary code execution when imported to the H2O platform.
Details
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| ai.h2o:h2o-core | — | — |
| unknown | — | — |
References
Similar Threats
- Critical CVE-2026-3960
- Critical CVE-2024-5986
- Critical CVE-2025-6544
- High CVE-2024-10549
- High CVE-2024-10550
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