CVE-2026-107726 Hazelcast: Arbitrary member memory access by low-privileged client

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, an...

CVE-2026-107726

Hazelcast is vulnerable to an arbitrary memory access flaw in versions prior to 5.4.5, 5.5.10, 5.6.1, and 5.7.0 . The root cause is improper validation of data supplied by a malicious client capable of connecting to a cluster. An attacker can perform arbitrary reads from a cluster member's Java h...