CVE-2026-8751

h2oai h2o-3 JAR Model.java importBinaryModel deserialization

Published: May 17, 2026Updated: May 19, 2026 Sources: CVE List NVDCWE-20

7.3HIGH

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:LConfidentiality

Low

I:LIntegrity

Low

A:LAvailability

Low

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Weaknesses

CWE-20 CWE-502

Affected Products

h2o

oss-projectaka quicly, h2o web server, picotls

h2oOn-prem

Networking Infrastructure / load-balancer-proxy

h2oai

commercial

h2o-3Mixed

AI / ML / ml-framework

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

3 techniques

Execution

Initial Access

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References

https://vuldb.com/submit/810107

vuldb.com

https://vuldb.com/vuln/364378

vuldb.com

https://vuldb.com/vuln/364378/cti

vuldb.com

and 1 more references View all →

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