CVE Tools
Sign in

CVE-2026-8751

h2oai h2o-3 JAR Model.java importBinaryModel deserialization

Published: May 17, 2026Updated: May 19, 2026 Sources: CVE List NVDCWE-20
NVD MITRE
7.3CVSSHIGH
EPSS Score
0.4%
Top 67.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:LI:LA:L
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
Open in CVSS calculator →

Weaknesses

CWE-20CWE-502

Affected Products

h2oh2o
On-prem
Networking Infrastructure / load-balancer-proxy
h2o-3h2oai
Mixed
AI / ML / ml-framework
h2ooss-projectNetworking Infrastructureaka h2o web server, h2o, picotls, quicly
h2oaicommercialAI / ML

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

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

MITRE ATT&CK

3 techniques
Execution
Initial Access
View detailed technique mapping

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 →

Timeline

Published
May 17, 2026
Last Updated
May 19, 2026

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2026-8751 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows