CVE-2024-10550

Name: CVE-2024-10550
Creator: NVD / NIST
Published: 2025-03-20T10:15:17.39+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.59%

Last modified Jun 17, 2026

CVE-2024-10550 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability in the `/3/ParseSetup` endpoint of h2oai/h2o-3 version 3.46.0.1 allows for a denial of service (DoS) attack. The endpoint applies a user-specified regular expression to a user-controllable string. EPSS estimates a 0.59% chance of exploitation in the next 30 days.

Description

A vulnerability in the `/3/ParseSetup` endpoint of h2oai/h2o-3 version 3.46.0.1 allows for a denial of service (DoS) attack. The endpoint applies a user-specified regular expression to a user-controllable string. This can be exploited by an attacker to cause inefficient regular expression complexity, leading to the exhaustion of server resources and making the server unresponsive.

Metrics

CVSS 3.0

7.5/10

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

EPSS Probability

0.59%

43.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-1333

Affected Software

Vendor	Product	Versions
H2o	H2o	3.46.0.1

References

https://huntr.com/bounties/ef3f4d89-3b8b-4618-b134-cb93c1664ec6Exploit, Third Party Advisory

Timeline

Published: Mar 20, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-10550?

How severe is CVE-2024-10550?

CVE-2024-10550 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.59% probability of exploitation in the next 30 days.

How do I fix CVE-2024-10550?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-10550?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST