GitHub Advisoryadvisory · PyPI, Maven

GHSA-wwr9-4gmr-xvq9 H2O Vulnerable to Denial of Service (DoS) via `/3/Parse` Endpoint

HIGH Published 2025-03-20 Modified 2025-03-20 Official page ↗
Aliases
CVE-2024-10549
Ecosystem
PyPI, Maven
Packages
h2o, ai.h2o:h2o-core
Severity
High
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-1333, CWE-400
Reviewed
2025-03-20

Affected packages

• PyPI h2o: >= 3.30.0.7, <= 3.46.0.1 (no fix yet) • Maven ai.h2o:h2o-core: >= 3.30.0.7, <= 3.46.0.1 (no fix yet)

Description

A vulnerability in the `/3/Parse` endpoint of h2oai/h2o-3 version 3.46.0.1 allows for a denial of service (DoS) attack. The endpoint uses a user-specified string to construct a regular expression, which is then applied to another user-specified string. By sending multiple simultaneous requests, an attacker can exhaust all available threads, leading to a complete denial of service.

Related

Alias · CVE (1)

  • CVE-2024-10549 A vulnerability in the `/3/Parse` endpoint of h2oai/h2o-3 version 3.46.0.1 allows for a denial of service (DoS) attack. vulnerability

Weakness · CWE (2)

  • CWE-1333 Inefficient Regular Expression Complexity weakness
  • CWE-400 Uncontrolled Resource Consumption weakness

References