CVE-2026-8750 h2oai h2o-3 ImportFile API PersistNFS.java importFiles information disclosure
Remote attackers can exploit the ImportFile API in h2o-3 to disclose sensitive information, requiring permissions but posing a data leak risk.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-8750?
CVE-2026-8750 is a medium-severity vulnerability in h2oai h2o-3, published on 17 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Which versions are affected by CVE-2026-8750?
It affects 1 product.
Products include H2o H2o.
How do I fix CVE-2026-8750?
No fix has been published for CVE-2026-8750 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-8750 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-8750 exists.
Other vulnerabilities in h2oai h2o-3
Sources
Also known as GHSA-2g37-rjvj-534q.