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.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
H2oai
  • H2o-3

No data.

No data.

References
Link Providers
https://vuldb.com/submit/810107 cve-icon cve-icon
https://vuldb.com/vuln/364378 cve-icon cve-icon
https://vuldb.com/vuln/364378/cti cve-icon cve-icon
https://vulnplus-note.wetolink.com/share/b5nsQg6EcsBS cve-icon cve-icon
History

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'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2026-05-17T11:30:10.692Z

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 : Received

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

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

Link: CVE-2026-8751

cve-icon Redhat

No data.