Is CVE-2026-8752 actively exploited?

No active exploitation of CVE-2026-8752 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-8752 be exploited remotely?

Yes. CVE-2026-8752 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-8752?

CVE-2026-8752 has a CVSS score of 5.3 (MEDIUM).

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MEDIUM

CVE-2026-8752

CWE-266Published: May 17, 2026· Updated: May 19, 2026

5.3

CVSS v3.1

EPSS:0.06%probability of exploitation in 30 daysPercentile:19.1th

Official Description

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.

NVD Source

Technical Analysis

CVE-2026-8752 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.