---
id: CVE-2026-8752
title: A weakness has been identified in h2oai h2o-3 up to 7402
summary: >-
  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 Handl…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-266
  - CWE-284
vendor: h2o
product: h2o
affected:
  - h2o <= 7402
published: '2026-05-17'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T20:10:00.190'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-8752'
references:
  - url: 'https://vuldb.com/submit/810108'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/364379'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/364379/cti'
    label: cna@vuldb.com
  - url: 'https://vulnplus-note.wetolink.com/share/pyVa0GWPuAZE'
    label: cna@vuldb.com
tags:
  - nvd
epss: 0.00543
epssPercentile: 0.44233
ingestedAt: '2026-10-14T20:53:12.292Z'
---

## Overview

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. Executing a manipulation can lead to improper access controls. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

## Affected

- `h2o <= 7402`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.