Vulnerability in H2oai H2oai/h2o-3
CVE-2024-5986
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.
EPSS: 0.006 (46.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.
Affected products
- H2oai H2oai/h2o-3 — versions unspecified
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2024-5986?
- CVE-2024-5986 is a critical-severity vulnerability in H2oai H2oai/h2o-3, classified under External Control of File Name or Path. CVSS score: 9.1/10. Published 2026-02-02.
- How severe is CVE-2024-5986?
- Critical severity. CVSS v3 base score is 9.1 out of 10.