CVE-2024-10553: H2O Deserialization of Untrusted Data Vulnerability

CVE-2024-10553 · Severity: critical · CVSS 9.8 · Published 2025-03-20

A vulnerability in the h2oai/h2o-3 REST API versions 3.46.0.4 allows unauthenticated remote attackers to execute arbitrary code via deserialization of untrusted data. The vulnerability exists in the endpoints POST /99/ImportSQLTable and POST /3/SaveToHiveTable, where user-controlled JDBC URLs are passed to DriverManager.getConnection, leading to deserialization if a MySQL or PostgreSQL driver is available in the classpath. This issue is fixed in version 3.46.0.6.

Technologies: ai.h2o:h2o-core (Maven), h2o (PyPI). Vendors: Maven, PyPI.

Quick answers

Is CVE-2024-10553 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2024-10553 being exploited in the wild.
How severe is CVE-2024-10553?
Critical severity, with a CVSS score of 9.8, published 20 March 2025.
Which products and versions are affected?
ai.h2o:h2o-core (Maven) < 3.46.0.6, ECOSYSTEM:introduced=0,fixed=3.46.0.6; h2o (PyPI) < 3.46.0.6, ECOSYSTEM:introduced=0,fixed=3.46.0.6.
Is there a fix for CVE-2024-10553?
Yes. ai.h2o:h2o-core (Maven): upgrade to 3.46.0.6 or later; h2o (PyPI): upgrade to 3.46.0.6 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2024-10553?
Check whether you run ai.h2o:h2o-core (Maven) or h2o (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • ai.h2o:h2o-core (Maven): upgrade to 3.46.0.6 or later
    # set ai.h2o:h2o-core to 3.46.0.6 in your pom.xml or build.gradle
  • h2o (PyPI): upgrade to 3.46.0.6 or later
    pip install "h2o>=3.46.0.6"

Affected products

  • ai.h2o:h2o-core (Maven) < 3.46.0.6, ECOSYSTEM:introduced=0,fixed=3.46.0.6
  • h2o (PyPI) < 3.46.0.6, ECOSYSTEM:introduced=0,fixed=3.46.0.6

Identifiers

  • CVE-2024-10553
  • GHSA-h7xg-cmpp-48hf
  • PYSEC-2026-351

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.