High severity · published May 17, 2026
CVE-2026-8750
h2oai h2o-3 ImportFile API PersistNFS.java importFiles information disclosure
7.5
CVSS
0.5%
EPSS
No
On KEV
Description
A vulnerability was identified in h2oai h2o-3 up to 7402. Affected by this issue is the function importFiles of the file h2o-core/src/main/java/water/persist/PersistNFS.java of the component ImportFile API. Such manipulation leads to information disclosure. The attack can be executed remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 42% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
H2
h2o-3 · h2oai
7402 · source: vendor
H2
H2o · H2o
through 7402 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-8750
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-8750
Third Party Advisory
https://vuldb.com/submit/810105
Third Party Advisory
https://vuldb.com/vuln/364377
Permissions Required
https://vuldb.com/vuln/364377/cti
Broken Link
https://vulnplus-note.wetolink.com/share/wWjmsfKHRJi3
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