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CVE-2024-10550

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Date: March 20, 2025

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.

Severity Score

Related Resources (5)

https://huntr.com/bounties/ef3f4d89-3b8b-4618-b134-cb93c1664ec6
https://github.com/h2oai/h2o-3
https://github.com/h2oai/h2o-3/blob/51c25940ded8b7d0acc8f3f72329fd9dedbb3a34/h2o-core/src/main/java/water/api/ParseSetupHandler.java#L121
https://nvd.nist.gov/vuln/detail/CVE-2024-10550
https://www.mend.io/vulnerability-database/CVE-2024-10550

Severity Score

Weakness Type (CWE)

Inefficient Regular Expression Complexity

CWE-1333

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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