VulnerabilityAnalyzed

CVE-2026-8751

Performing a manipulation results in deserialization.

MEDIUM 5.5EPSS 0.41%

Does this matter?

Lower severity and a low EPSS score (0.41%). Track it; it rarely justifies an emergency change on its own.

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 4.0: 5.5 MEDIUMCVSS: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/M
EPSS: 0.41% probability · 34th percentile
CISA KEV: Not listed
Weakness: CWE-20, CWE-502
Affected: h2o/h2o
Source: cna@vuldb.com

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

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.