CVE-2023-33265
Hazelcast Executor Services don't check client permissions properly
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2023-33265- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-862
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2023-33265- Updated
- 2026-11-02
EUVDEUVD-2023-2023 No score
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.
- Record
EUVD-2023-2023- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-c5vj-wp4v-mmvx
Hazelcast Executor Services don't check client permissions properly
Impact
In Hazelcast Platform, 5.0 through 5.0.4, 5.1 through 5.1.6, and 5.2 through 5.2.3, and Hazelcast IMDG (all versions up to 4.2.z), Executor Services don't check client permissions properly, allowing authenticated users to execute tasks on members without the required permissions granted.
Patches
Fix versions: 5.3.0, 5.2.4, 5.1.7, 5.0.5
Workarounds
Users are only affected when they already use executor services (i.e., an instance exists as a distributed data structure).
- Record
GHSA-c5vj-wp4v-mmvx- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H - Weakness
- CWE-862
- Updated
- 2026-11-02
OSVGHSA-c5vj-wp4v-mmvx
Hazelcast Executor Services don't check client permissions properly
Impact
In Hazelcast Platform, 5.0 through 5.0.4, 5.1 through 5.1.6, and 5.2 through 5.2.3, and Hazelcast IMDG (all versions up to 4.2.z), Executor Services don't check client permissions properly, allowing authenticated users to execute tasks on members without the required permissions granted.
Patches
Fix versions: 5.3.0, 5.2.4, 5.1.7, 5.0.5
Workarounds
Users are only affected when they already use executor services (i.e., an instance exists as a distributed data structure).
- Record
GHSA-c5vj-wp4v-mmvx- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H - Weakness
- CWE-862
- Updated
- 2026-11-02
OSVCLSA-2026-1769990937 No score
TuxCare security update for com.hazelcast (3 CVEs)
TuxCare rebuilt 2 com.hazelcast packages to address 3 CVEs. Fixed in 4.2.8-tuxcare.1.
- Record
CLSA-2026-1769990937- Updated
- 2026-11-02
OSV No score
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.
- Record
CVE-2023-33265- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
com.hazelcast:hazelcastMaven |
5.2.0 to 5.2.3 | 5.2.4 |
com.hazelcast:hazelcastMaven |
5.1.0 to 5.1.6 | 5.1.7 |
com.hazelcast:hazelcastMaven |
through 5.0.4 | 5.0.5 |
com.hazelcast:hazelcast-enterpriseMaven |
5.2.0 to 5.2.3 | 5.2.4 |
com.hazelcast:hazelcast-enterpriseMaven |
5.1.0 to 5.1.6 | 5.1.7 |
com.hazelcast:hazelcast-enterpriseMaven |
through 5.0.4 | 5.0.5 |
com.hazelcast:hazelcastTuxCare:Maven From an advisory covering 3 CVEs |
4.2.8 up to 4.2.8-tuxcare.1 | 4.2.8-tuxcare.1 |
com.hazelcast:hazelcast-allTuxCare:Maven From an advisory covering 3 CVEs |
4.2.8 up to 4.2.8-tuxcare.1 | 4.2.8-tuxcare.1 |
com.hazelcast:hazelcastMaven |
5.2.0 up to 5.2.4, plus listed versions 5.2.15.2.25.2.3 |
5.2.4 |
com.hazelcast:hazelcastMaven |
5.1.0 up to 5.1.7, plus listed versions 5.15.1.15.1.25.1.35.1.45.1.55.1.6 |
5.1.7 |
Show 4 moreShow less
| Package | Affected | Fixed |
|---|---|---|
com.hazelcast:hazelcastMaven |
before 5.0.5, plus listed versions 1.51.5.11.5.21.5.31.6 Show 45 moreShow less1.6-RC11.71.7-RC11.7-RC21.7-RC31.7-RC41.7.11.81.8.11.8.21.8.31.8.41.8.51.91.9.11.9.1-RC21.9.21.9.2.11.9.2.21.9.2.31.9.31.9.3-RC1.9.3.11.9.3.21.9.3.31.9.3.41.9.41.9.4-RC1.9.4-RC11.9.4.11.9.4.21.9.4.31.9.4.41.9.4.51.9.4.61.9.4.82.02.0-RC12.0-RC22.0.12.0.22.0.32.0.42.12.1.1 |
5.0.5 |
com.hazelcast:hazelcast-enterpriseMaven |
5.2.0 up to 5.2.4 | 5.2.4 |
com.hazelcast:hazelcast-enterpriseMaven |
5.1.0 up to 5.1.7 | 5.1.7 |
com.hazelcast:hazelcast-enterpriseMaven |
before 5.0.5 | 5.0.5 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-33265 is a high vulnerability (CVSS 8.8) in Hazelcast, published July 18, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.69%, the 52nd percentile. Fixed in com.hazelcast:hazelcast 5.2.4.
References
github.com/hazelcast/hazelcast
support.hazelcast.com/s/article/Security-Advisory-for-CVE-2023-33265
nvd.nist.gov/vuln/detail/CVE-2023-33265
Left out here: 188 versions. The JSON record has them.