CVE-2026-8751
h2oai h2o-3 JAR Model.java importBinaryModel deserialization
- State
- Published
- Severity
- 6.9 Medium
- Published
- May 17, 2026
- Updated
- May 18, 2026
- Reserved
- May 16, 2026
Description
A security flaw has been discovered in h2oai h2o-3 up to 7402. This affects the function importBinaryModel of the file h2o-core/src/main/java/hex/Model.java of the component JAR Handler. Performing a manipulation results in deserialization. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 7.3 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 7.3 High | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 7.5 High | AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
h2o-3h2oai |
|
References
- VDB-364378 | h2oai h2o-3 JAR Model.java importBinaryModel deserializationvdb-entrytechnical-description
- VDB-364378 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- Submit #810107 | H2O-3 latest Pre-Auth Insecure Deserializationthird-party-advisory
- https://vulnplus-note.wetolink.com/share/b5nsQg6EcsBSexploit
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