Apache Artemis, Apache ActiveMQ Artemis: Message selector wildcard handling could lead to denial of service

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-75880
StatePUBLISHED
Assignerapache
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-10 05:17:01 UTC
Updated2026-09-18 15:17:11 UTC
DescriptionAn authenticated client could attach a consumer with a selector containing crafted wildcard usage that results in excessive evaluation during message delivery attempts, occupying a shared broker thread and leading to denial of service. This issue affects Apache Artemis: from 2.50.0 through 2.56.0; Apache ActiveMQ Artemis: from 1.0.0 through 2.44.0. Users are recommended to upgrade to version 2.57.0, which fixes this issue.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from ADP

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.002880000 probability, percentile 0.211860000 (date 2026-09-13)

Problem Types: CWE-1333 | CWE-1333 CWE-1333 Inefficient regular expression complexity

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Apache Artemis All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Apache Software Foundation Apache Artemis affected 2.50.0 2.56.0 semver Not specified
CNA Apache Software Foundation Apache ActiveMQ Artemis affected 1.0.0 2.44.0 semver Not specified

References

ReferenceSourceLinkTags
lists.apache.org/thread/db34g9qoxd8p08086cr95683fkb8wm5r [email protected] lists.apache.org Mailing List, Vendor Advisory
www.openwall.com/lists/oss-security/2026/09/10/7 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Mike Read (en)

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