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Fencer Vulns
high 8.8

CVE-2023-33265 json

Hazelcast Executor Services don't check client permissions properly

published 2023-07-18 3 y ago modified 2026-06-17 4 mo ago also GHSA-c5vj-wp4v-mmvx , EUVD-2023-2023

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 52%
public exploits
0
none known

Summary

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.

Patch / fix

  • maven com.hazelcast:hazelcast 5.0.5, 5.1.7, 5.2.4
  • maven com.hazelcast:hazelcast-enterprise 5.0.5, 5.1.7, 5.2.4
  • hazelcast hazelcast 5.0.5, 5.1.7, 5.2.4

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.69% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
GitHub 3.1 7.6 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H

Affected packages

ecosystem package affected fixed in
maven com.hazelcast:hazelcast
>=5.2.0, <5.2.4
>=5.1.0, <5.1.7
<5.0.5
5.2.4
5.1.7
5.0.5
maven com.hazelcast:hazelcast-enterprise
>=5.2.0, <5.2.4
>=5.1.0, <5.1.7
<5.0.5
5.2.4
5.1.7
5.0.5

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.