External Control of File Name or Path Affecting ai.h2o:h2o-core package, versions [0,3.46.0.1)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published4 Feb 2026
- disclosed2 Feb 2026
- creditpatrik-ha
Introduced: 2 Feb 2026
CVE-2024-5986 (opens in a new tab)How to fix?
Upgrade ai.h2o:h2o-core to version 3.46.0.1 or higher.
Overview
Affected versions of this package are vulnerable to External Control of File Name or Path via the /3/Parse and /3/Frames/framename/export endpoints. An attacker can overwrite arbitrary files on the server, including sensitive files such as private SSH keys or script files, by injecting malicious data as file headers and exporting them, leading to remote code execution and full system compromise.
Note: This vulnerability was addressed by using the service without -file_deny_glob