CVE-2024-10549: PYSEC-2026-1445 - H2O Vulnerable to Denial of Service (DoS) via `/3/Parse` Endpoint

CVE-2024-10549 · Severity: low · CVSS 3 · Published 2026-07-07

H2O Vulnerable to Denial of Service (DoS) via `/3/Parse` Endpoint

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

Quick answers

Is CVE-2024-10549 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2024-10549 being exploited in the wild.
How severe is CVE-2024-10549?
Low severity, with a CVSS score of 3, published 7 July 2026.
Which products and versions are affected?
ai.h2o:h2o-core (Maven) ECOSYSTEM:introduced=3.30.0.7,last_affected=3.46.0.1; h2o (PyPI) ECOSYSTEM:introduced=3.30.0.7,last_affected=3.46.0.1.
Is there a fix for CVE-2024-10549?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2024-10549?
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.

Affected products

  • ai.h2o:h2o-core (Maven) ECOSYSTEM:introduced=3.30.0.7,last_affected=3.46.0.1
  • h2o (PyPI) ECOSYSTEM:introduced=3.30.0.7,last_affected=3.46.0.1

Identifiers

  • CVE-2024-10549
  • GHSA-wwr9-4gmr-xvq9
  • PYSEC-2026-1445

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