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CVE-2024-10550

Denial of Service by ReDOS in h2oai/h2o-3

Published: Mar 20, 2025Updated: Jul 14, 2025 Sources: CVE List NVD GHSACWE-1333
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.6%
Top 56.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-1333

Affected Products

h2oh2o
On-prem
Networking Infrastructure / load-balancer-proxy
h2oPyPIOSS Libraries
ai.h2o:h2o-coreMavenOSS Libraries
h2oai/h2o-3h2oai
Mixed
AI / ML / ml-framework
h2ooss-projectNetworking Infrastructureaka h2o web server, h2o, picotls, quicly
pypipackage-ecosystemOSS Libraries
mavenpackage-ecosystemOSS Libraries
h2oaicommercialAI / ML

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://huntr.com/bounties/ef3f4d89-3b8b-4618-b134-cb93c1664ec6
huntr.com
https://nvd.nist.gov/vuln/detail/CVE-2024-10550
nvd.nist.gov
https://github.com/h2oai/h2o-3
github.com
and 1 more references View all →

Timeline

Published
Mar 20, 2025
Last Updated
Jul 14, 2025

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