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.

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History

Tue, 19 May 2026 18:00:00 +0000

Type Values Removed Values Added
First Time appeared H2o
H2o h2o
CPEs cpe:2.3:a:h2o:h2o:*:*:*:*:*:*:*:*
Vendors & Products H2o
H2o h2o

Mon, 18 May 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sun, 17 May 2026 11:45:00 +0000

Type Values Removed Values Added
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.
Title h2oai h2o-3 JAR Model.java importBinaryModel deserialization
First Time appeared H2oai
H2oai h2o-3
Weaknesses CWE-20
CWE-502
CPEs cpe:2.3:a:h2oai:h2o-3:*:*:*:*:*:*:*:*
Vendors & Products H2oai
H2oai h2o-3
References
Metrics cvssV2_0

{'score': 7.5, 'vector': 'AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 7.3, 'vector': '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'}

cvssV3_1

{'score': 7.3, 'vector': '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'}

cvssV4_0

{'score': 6.9, 'vector': '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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-05-18T14:19:22.677Z

Reserved: 2026-05-16T16:20:44.883Z

Link: CVE-2026-8751

cve-icon Vulnrichment

Updated: 2026-05-18T14:19:17.302Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-17T12:16:42.533

Modified: 2026-05-19T17:46:04.787

Link: CVE-2026-8751

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-17T12:30:15Z

Weaknesses