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H2O-3 CVE-2026-8752

| EUVD-2026-30699 MEDIUM
Improper Access Control (CWE-284)
2026-05-17 VulDB GHSA-cq43-78ch-3f5q
5.5
CVSS 4.0
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CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

2
Analysis Generated
May 17, 2026 - 12:30 vuln.today
CVSS changed
May 17, 2026 - 12:22 NVD
5.3 (MEDIUM) 5.5 (MEDIUM)

DescriptionNVD

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.

AnalysisAI

Improper access controls in H2O-3's Rapids setproperty primitive allow remote unauthenticated attackers to modify system properties via the AstSetProperty.java exec function. The vulnerability permits low-impact integrity violations through manipulation of configuration settings accessible via the Rapids API. …

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CVE-2026-8752 vulnerability details – vuln.today

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