CVE-2024-5986: critical vulnerability in h2oai/h2o-3
Remote Arbitrary File Write with Arbitrary Data in h2oai/h2o-3
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.1epss 0.7%
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.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Affected products
h2oai · h2oai/h2o-3Related CVEs — h2oai/h2o-3
In the same product, most dangerous first.
CVE-2023-6016CRITICALH2O Remote Code Execution via POJO Model ImportEPSS 30.6%CVE-2025-6507CRITICALDeserialization of Untrusted Data in h2oai/h2o-3EPSS 17.3%CVE-2023-6038CRITICALLocal File Inclusion in h2oai/h2o-3EPSS 4.3%CVE-2024-10553CRITICALJdbc Deserialization in h2oai/h2o-3EPSS 1.6%CVE-2025-6544CRITICALDeserialization Vulnerability in h2oai/h2o-3EPSS 1.0%CVE-2026-3960MEDIUMRemote Code Execution in h2oai/h2o-3EPSS 0.9%