CVE-2024-5986Critical· 9.1▾ MidnightH2O has an External Control of File Name or Path vulnerability
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 50.1 · likelihood 0.1 · exploitation 0
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Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
Last analysed / modified upstream
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.
ai.h2o:h2o-core <= 3.46.0.1h2o <= 3.46.0.1Refer to the advisory for the patched release.
Connected by shared product, vendor, weakness, or advisory.
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CVE-2023-6569Critical· 9.3External Control of File Name or Path in h2oai/h2o-3
CVE-2025-6544Critical· 9.8A deserialization vulnerability exists in h2oai/h2o-3 versions <= 3.46.0.8, allowing attackers to read arbitrary system files and execute arbitrary code
CVE-2024-10553Critical· 9.8H2O Deserialization of Untrusted Data Vulnerability
CVE-2024-5550Medium· 5.3Arbitrary system path lookup in h20
CVE-2024-10549High· 7.5H2O Vulnerable to Denial of Service (DoS) via `/3/Parse` Endpoint