CVE-2026-107725
HighCVSS 8.7Summary
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.
Risk Assessment
A low-privileged attacker can take over a cluster node, threatening the integrity and availability of the entire data processing system.
Recommendation
Upgrade Hazelcast to version 5.4.5, 5.5.10, 5.6.1, or 5.7.0 and review cluster client permissions.
Other vulnerabilities in Hazelcast
See all- CVE-2026-107726Critical
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.
- CVE-2023-33265High
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.
- CVE-2023-33264Medium
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.
Original NVD description (English source)
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, missing authorization checks in the IMap Predicates API allow a malicious client with limited privileges to execute arbitrary code on a Hazelcast cluster member. This issue is fixed in versions 5.4.5, 5.5.10, 5.6.1, and 5.7.0.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS