GHSA-5c8j-g96x-cj78
H2O Vulnerable to Denial of Service (DoS) via `HEAD` Request
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| PyPI | h2o | >= 3.2.0.1, <= 3.46.0 | no fix listed |
| Maven | ai.h2o:h2o-core | >= 3.2.0.1, <= 3.46.0 | no fix listed |
Details
As written in the advisory (Markdown source, shown as plain text).
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.
References
External links from the advisory. They lead to third-party sites.