CVE-2024-10549

HighCVSS 7.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.0 7.5/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-1333

Affected software

Vendor	Product	Versions
h2oai	h2oai/h2o-3	>= unspecified, <= latest

References

https://huntr.com/bounties/ce7bd2d6-fd38-440d-a91a-dd8f3fc06bc2Exploit, Third Party Advisory

Timeline

Published: Mar 20, 2025
Last modified: Jun 17, 2026
NVD status: Modified

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