CVE-2023-33265
HighCVSS 8.8Exploitation Probability (EPSS)
Low risk43th percentile - higher than 43% of all known CVEs
Summary
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.
Risk Assessment
The organization may be exposed to unauthorized task execution by users, potentially compromising system and data integrity.
Recommendation
It is recommended to upgrade to the latest version of Hazelcast where user permission checks have been fixed.
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-2026-107725High
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.
- 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)
In Hazelcast through 5.0.4, 5.1 through 5.1.6, and 5.2 through 5.2.3, executor services don't check client permissions properly, allowing authenticated users to execute tasks on members without the required permissions granted.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS