Findings

CVE-2026-8751

A security flaw has been discovered in h2oai h2o-3 up to 7402.

Published May 17, 2026 · updated Oct 14, 2026 · h2o h2o

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.

Timeline

Detection, updates, and resolution for this record.

  1. May 17, 2026 · NIST NVD

    Detected

    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 abou

  2. Oct 14, 2026 · NIST NVD

    Updated

    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 abou

Affected

  • cpe h2o/h2oversion unspecified

Sources

  • CVE.orgCVE-2026-8751

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2026-8751

    30-day exploitation probability 0.8%

    first.org
  • NIST NVDCVE-2026-8751

    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 ou

    nvd.nist.gov

References