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Fencer Vulns
medium 6.5

CVE-2026-75880 json

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

published 2026-09-10 1 mo ago modified 2026-09-18 51 d ago also EUVD-2026-75244

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 51%
public exploits
0
none known

Summary

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.

Patch / fix

  • apache artemis 2.44.0, 2.57.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-75880 updated cvss 6.5

artemis-selector: Apache Artemis, Apache ActiveMQ Artemis: Denial of Service via crafted message selector wildcard

  • Red Hat AMQ Broker 7 artemis-selector 2.53.0.redhat-00008 Red Hat build of Apache Camel 4 for Quarkus 3 artemis-selector 2.53.0.redhat-00008
    affected: no fix available
  • Red Hat build of Apache Camel for Spring Boot 4 artemis-selector 2.53.0.redhat-00008 Red Hat Fuse 7 artemis-selector 2.53.0.redhat-00008 Red Hat JBoss Enterprise Application Platform 7 artemis-selector 2.53.0.redhat-00008 Red Hat JBoss Enterprise Application Platform 8 artemis-selector 2.53.0.redhat-00008 Red Hat JBoss Enterprise Application Platform Expansion Pack artemis-selector 2.53.0.redhat-00008 Red Hat Satellite 6 candlepin, candlepin-selinux
    +1 more products
    Red Hat Single Sign-On 7 artemis-selector 2.53.0.redhat-00008
    under investigation

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
59 d ago

Exploit prediction

0.65% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Apache Software Foundation Apache Artemis
  • Apache Software Foundation Apache ActiveMQ Artemis

Classification

Weakness
  • CWE-1333 Inefficient Regular Expression Complexity

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.