CVE-2026-8751

Name: CVE-2026-8751
Creator: NVD / NIST
Published: 2026-05-17T12:16:42.533+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.41%

Last modified Jun 17, 2026

CVE-2026-8751 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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. EPSS estimates a 0.41% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0

5.5/10

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.41%

32.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
H2o	H2o	<= 7402

References

https://vuldb.com/submit/810107Third Party Advisory, VDB Entry
https://vuldb.com/vuln/364378Third Party Advisory, VDB Entry
https://vuldb.com/vuln/364378/ctiPermissions Required, VDB Entry
https://vulnplus-note.wetolink.com/share/b5nsQg6EcsBSBroken Link

Timeline

Published: May 17, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-8751?

How severe is CVE-2026-8751?

CVE-2026-8751 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.41% probability of exploitation in the next 30 days.

How do I fix CVE-2026-8751?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-8751?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST