Vulnerability · NVD published 2026-10-08
CVE-2026-107726
Hazelcast is a unified real-time data platform combining stream processing with a fast data store. Prior to 5.4.5, 5.5.10, and 5.6.1, improper validation of data supplied by a malicious client able to connect to a cluster allows arbitrary reads from a cluster member's Java heap, off-heap data, and JVM process address space. The same flaw can crash cluster members and, in some Hazelcast Enterprise Edition configurations, corrupt memory with possible arbitrary code execution. Both slim and full distributions are affected. This issue is fixed in versions 5.4.5, 5.5.10, 5.6.1, and 5.7.0.
Signals
- Exploited in the wild
- Not on KEVNot in CISA's catalogue as of the last daily pull. Absence is not proof of safety.
- EPSS · 30-day forecast
- 0%Chance of exploitation in the next 30 days, 31th percentile of all CVEs. A forecast; KEV outranks it.
- CVSS · NVD
- not stated by sourcesNo score published by NVD.
- Internet exposure
- not stated by sourcesNo exposure census on this CVE's dispatches.
Exploits
not checkedNot checked yet. Our exploit watch has not looked at this CVE, so this says nothing either way.
On the wire
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