What is CVE-2026-8752?

CVE-2026-8752 is a medium-severity vulnerability in H2o, classified under Incorrect Privilege Assignment. CVSS score: 5.3/10. Published 2026-05-17.

How severe is CVE-2026-8752?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Privilege escalation in H2o

CVE-2026-8752

A weakness has been identified in h2oai h2o-3 up to 7402. This vulnerability affects the function exec of the file h2o-core/src/main/java/water/rapids/ast/prims/misc/AstSetProperty.java of the component Rapids setproperty Primitive Handler…

EPSS: 0.001 (23.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

H2o
H2oai H2o-3 — versions 7402

Weakness classification (CWE)

References

cna@vuldb.com (VDB Entry, Third Party Advisory, third-party-advisory)
cna@vuldb.com (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry)
cna@vuldb.com (exploit, Broken Link)

Frequently asked questions

What is CVE-2026-8752?: CVE-2026-8752 is a medium-severity vulnerability in H2o, classified under Incorrect Privilege Assignment. CVSS score: 5.3/10. Published 2026-05-17.
How severe is CVE-2026-8752?: Medium severity. CVSS v3 base score is 5.3 out of 10.