What’s Vulnerable › Vulnerabilities

CVE-2023-33265

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-07-18 · updated 2026-06-17
• Weakness: CWE-862

Description

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.

Affected products

• hazelcast: from 5.0.0 before 5.0.5; from 5.1.0 before 5.1.7; from 5.2.0 before 5.2.4 — fixed in 5.0.5, 5.1.7, 5.2.4
• hazelcast Imdg: through 4.2.8

How to fix

Upgrade to a fixed version: hazelcast 5.0.5, 5.1.7, 5.2.4. Check the vendor advisory for mitigations.

References

• https://github.com/hazelcast/hazelcast
• https://support.hazelcast.com/s/article/Security-Advisory-for-CVE-2023-33265
• https://github.com/hazelcast/hazelcast
• https://support.hazelcast.com/s/article/Security-Advisory-for-CVE-2023-33265

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