CVE-2026-8751

HIGH 7.3

h2oai h2o-3 JAR Model.java importBinaryModel deserialization

CVSS Score

7.3

EPSS Score

0.0%

EPSS Percentile

11th

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.

CWE	CWE-502 CWE-20
Vendor	h2oai
Product	h2o-3
Published	May 17, 2026
Last Updated	May 18, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

h2oai / h2o-3

7402

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/364378 vuldb.com: https://vuldb.com/vuln/364378/cti vuldb.com: https://vuldb.com/submit/810107 vulnplus-note.wetolink.com: https://vulnplus-note.wetolink.com/share/b5nsQg6EcsBS

Credits

🔍 vulnplusbot (VulDB User) VulDB CNA Team