Hazelcast vulnerabilities

Hazelcast is a unified real-time data platform. Prior to 5.4.5, 5.5.10, and 5.6.1, missing authorization checks in the IMap Predicates API allow a malicious client with limited privileges to execute arbitrary code on a Hazelcast cluster member.

Hazelcast prior to 5.4.5, 5.5.10, and 5.6.1 contains improper validation of data supplied by a malicious client able to connect to a cluster, allowing 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. This issue is fixed in versions 5.4.5, 5.5.10, 5.6.1, and 5.7.0.

In Hazelcast versions 5.0.4, 5.1 through 5.1.6, and 5.2 through 5.2.3, executor services do not properly check client permissions, allowing authenticated users to execute tasks on members without the required permissions.

In Hazelcast versions 5.0.4, 5.1 through 5.1.6, and 5.2 through 5.2.3, configuration routines do not properly mask passwords in member configuration, allowing Hazelcast Management Center users to view some secrets.