CVE-2024-10549 HIGH

CVE-2024-10549: Denial of Service by ReDOS in h2oai/h2o-3

Vendor H2Oai
Product h2oai/h2o-3
Weakness CWE-1333
Published March 20, 2025
Last update October 15, 2025
View on NVD All CVEs

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 20, 2025 CVE published
October 15, 2025 Record updated