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. 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.

CVSS 4.0

5.5CVSS: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

CVSS 3.1

5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS

0.3% chance of exploitation in the next 30 days; higher than 23% of CVEs (scores of 2026-10-25)

CWEs

CWE-266, CWE-284

Published

2026-05-17

Modified

2026-10-14

Record from

the NVD, synced 2026-10-19

Affected

• h2o:h2o

References

• https://vuldb.com/submit/810108
• https://vuldb.com/vuln/364379
• https://vuldb.com/vuln/364379/cti
• https://vulnplus-note.wetolink.com/share/pyVa0GWPuAZE

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