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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
7.5HIGH
NVD MITRE
EPSS Score
0.6%
Top 55.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not 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.

No summary for this CVE yet.

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

h2o
oss-projectaka h2o web server, picotls, quicly
h2oOn-prem
Networking Infrastructure / load-balancer-proxy
PyPI
package-ecosystem
h2o
OSS Libraries
Maven
package-ecosystem
ai.h2o:h2o-core
OSS Libraries
h2oai
commercial
h2oai/h2o-3Mixed
AI / ML / ml-framework

Exploitability

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

Products CVE Techniques Tactics

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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 →

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