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Back to active CVEs
Medium · CVSS 6.5CVE-2026-75880

Apache Artemis, Apache ActiveMQ Artemis: Message selector wildcard handling could lead to denial of serviceCVE-2026-75880

Answer in brief

CVE-2026-75880 records a Medium severity (CVSS 6.5) vulnerability in Apache Artemis, Apache ActiveMQ Artemis: Message selector wildcard handling could lead to denial of service. The current sources do not mark it as known exploited. The current feed maps Apache Software Foundation/Apache ActiveMQ Artemis (generic), Apache Software Foundation/Apache Artemis (generic), Apache Software Foundation/org.apache.activemq:artemis-selector (generic), Apache Software Foundation/org.apache.artemis:artemis-selector (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 10, 2026Updated Sep 18, 2026Source checked Oct 25, 2026First seen by HOL Sep 10, 2026Material review Sep 18, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.5
Exploitation
Not marked as known exploited
Affected software
5 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Apache Software Foundation/Apache ActiveMQ Artemis (generic), Apache Software Foundation/Apache Artemis (generic), Apache Software Foundation/org.apache.activemq:artemis-selector (generic), Apache Software Foundation/org.apache.artemis:artemis-selector (generic). Check affected ranges and fixed versions before updating.

Affected products and reported versions
ProductAffected versionsFixed versions
cpe:2.3:a:apache:artemis:*:*:*:*:*:*:*:*Not reportedNot reported
Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Apache Software Foundation/Apache ActiveMQ Artemisgeneric1.0.0Not reported
Apache Software Foundation/Apache Artemisgeneric2.50.0Not reported
Apache Software Foundation/org.apache.activemq:artemis-selectorgeneric>=1.0.0 <=2.44.0Not reported
Apache Software Foundation/org.apache.artemis:artemis-selectorgeneric>=2.50.0 <=2.56.0Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Apache Software Foundation/Apache ActiveMQ Artemis, Apache Software Foundation/Apache Artemis, Apache Software Foundation/org.apache.activemq:artemis-selector.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Sep 10, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 18, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 10, 2026

Sources and claim methodology

  • Source referencelists.apache.org
  • Source referenceopenwall.com
Upstream source description

An 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.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-1333
Source
CVE List V5
Source checked
Oct 25, 2026
References
2 linked sources
Open source record