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Vulnerability record · CVE-2026-75880 · published 10 September 2026

CVE-2026-75880: Apache artemis inefficient regular expression (redos) vulnerability

Apache · Artemis

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.

6.5 CVSS 3.1 Medium EPSS 0.65% · top 50.8% CWE-1333 · Inefficient regular expression (ReDoS)
6.5CVSS 3.1 base score
0.65%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
18 Sep 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://lists.apache.org/thread/db34g9qoxd8p08086cr95683fkb8wm5r Mailing ListVendor Advisory
http://www.openwall.com/lists/oss-security/2026/09/10/7 Mailing ListThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-75880), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.