Security Resilience

CVE-2023-45859

Hazelcast ≤ 4.1.10

Published
28 February 2024
Modified
13 May 2025
Patch / advisory
View advisory
CVSS Score v3.1 7.6
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
EPSS Score 0.0052 43th percentile
Risk Priority 57 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-45859 is a high-severity Insecure Storage of Sensitive Information (CWE-922) vulnerability in Hazelcast Hazelcast. Its CVSS base score is 7.6 (High).

Operationally, ranked at the 43th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to AC-3 (Access Enforcement) and AC-6 (Least Privilege) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

A01:2025 Broken Access Control

EU & UK References

Vulnerability Data

In Hazelcast through 4.1.10, 4.2 through 4.2.8, 5.0 through 5.0.5, 5.1 through 5.1.7, 5.2 through 5.2.4, and 5.3 through 5.3.2, some client operations don't check permissions properly, allowing authenticated users to access data stored in the cluster.

CWE(s)
CWE-922

Related Threats

CVEs Like This One

CVE-2023-45860Same product: Hazelcast Hazelcast
CVE-2023-33264Same product: Hazelcast Hazelcast
CVE-2023-33265Same product: Hazelcast Hazelcast
CVE-2024-56518Same vendor: Hazelcast
CVE-2023-6253Shared CWE-922
CVE-2025-32746Shared CWE-922
CVE-2023-37563Shared CWE-922
CVE-2024-29953Shared CWE-922
CVE-2024-10028Shared CWE-922
CVE-2025-21299Shared CWE-922

Affected Assets

hazelcast
hazelcast
≤ 4.1.10 · 4.2.0 — 4.2.8 · 5.0.0 — 5.0.5

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

AC-3 Access Enforcement good match

Enforces approved authorizations for logical access to stored information, directly stopping unauthorized read/write.

SC-28 Protection of Information at Rest good match

Requires protection of confidentiality/integrity for information at rest, directly addressing insecure storage.

AC-6 Least Privilege good match

Limits privileges so only authorized accesses to sensitive stored data are permitted.

AC-16 Security and Privacy Attributes partial match

Associates security attributes with information to support proper access decisions on storage.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.7.14 Secure disposal or re-use of equipment none match
blocks

A.7.14 addresses end-of-life physical destruction, sanitization or label removal on equipment/media already containing data; it does not stop the product from storing sensitive information without limiting unauthorized read/write access in the first place.

Hardening callouts derived

DISA STIG baselines are authored against specific weaknesses. Where this CVE cites a broad weakness class, the mapping is not asserted at that abstraction (owner ruling, 2026-09-25: grade only at Base and below), so no rule is shown here rather than a rule shown against the wrong grain.

  • No fine-grained STIG row for CWE-922, a class-level weakness. Rules are authored against its narrower children: CWE-312.

References