CVE-2026-8751CWE-20CWE-502insecure-deserialization

CVE-2026-8751

High · published May 17, 2026

CVSS v3.1
7.3
EPSS
0%
Percentile
34.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.3 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00409 · 34.0th percentile
Weaknesses
CWE-20 · Improper Input Validation; CWE-502 · Deserialization of Untrusted Data
Published
2026-05-17T16:16Z
Affected products (1)
ProductVersionsFixed in
h2o/h2o≤ 7402—
References (4)
https://vuldb.com/submit/810107 · [email protected]https://vuldb.com/vuln/364378 · [email protected]https://vuldb.com/vuln/364378/cti · [email protected]https://vulnplus-note.wetolink.com/share/b5nsQg6EcsBS · [email protected]
EPSS history
Timeline
  • 17 MAY 11:30Z
    h2oai h2o-3 JAR Model.java importBinaryModel deserialization
    cvelistv5