GHSA-5c8j-g96x-cj78HighCVSS 7.5

H2O Vulnerable to Denial of Service (DoS) via `HEAD` Request

Published
March 20, 2025
Last Modified
March 20, 2025

🔗 CVE IDs covered (1)

📋 Description

A vulnerability in the typeahead endpoint of h2oai/h2o-3 version 3.46.0 allows for a denial of service. The endpoint performs a HEAD request to verify the existence of a specified resource without setting a timeout. An attacker can exploit this by sending multiple requests to an attacker-controlled server that hangs, causing the application to block and become unresponsive to other requests.

🎯 Affected products2

  • pip/h2o:>= 3.2.0.1, <= 3.46.0
  • maven/ai.h2o:h2o-core:>= 3.2.0.1, <= 3.46.0

🔗 References (4)