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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.

PUBLISHED Reserved 2026-05-16 | Published 2026-05-17 | Updated 2026-05-17 | Assigner VulDB




MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
MEDIUM: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
MEDIUM: 5.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
5.0AV:N/AC:L/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR

Problem types

Information Disclosure

Improper Access Controls

Product status

7402
affected

Timeline

2026-05-16:Advisory disclosed
2026-05-16:VulDB entry created
2026-05-16:VulDB entry last update

Credits

vulnplusbot (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/364377 (VDB-364377 | h2oai h2o-3 ImportFile API PersistNFS.java importFiles information disclosure) vdb-entry technical-description

vuldb.com/vuln/364377/cti (VDB-364377 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/submit/810105 (Submit #810105 | H2O-3 latest arbitrary local file disclosure) third-party-advisory

vulnplus-note.wetolink.com/share/wWjmsfKHRJi3 exploit

cve.org (CVE-2026-8750)

nvd.nist.gov (CVE-2026-8750)

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