CVE-2024-5986
CRITICAL9.1EPSS 0.17%H2O has an External Control of File Name or Path vulnerability
Published: 2/2/2026Modified: 2/3/2026
Description
A vulnerability in h2oai/h2o-3 version 3.46.0.1 allows remote attackers to write arbitrary data to any file on the server. This is achieved by exploiting the `/3/Parse` endpoint to inject attacker-controlled data as the header of an empty file, which is then exported using the `/3/Frames/framename/export` endpoint. The impact of this vulnerability includes the potential for remote code execution and complete access to the system running h2o-3, as attackers can overwrite critical files such as private SSH keys or script files.
Affected packages (2)
- Maven/ai.h2o:h2o-corefrom 0, <= 3.46.0.1
- PyPI/h2ofrom 0, <= 3.46.0.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H |