How severe is CVE-2026-75880?

CVE-2026-75880 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-75880 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-75880?

CVE-2026-75880 affects Apache Artemis. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-75880?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-75880 published?

CVE-2026-75880 was published on 2026-09-10 and last updated on 2026-09-18.

CVE-2026-75880

CVE-2026-75880 is a medium-severity vulnerability in Apache Artemis with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1333.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1333
Affected product: Apache Artemis
Published: 2026-09-10
Last modified: 2026-09-18

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.

Frequently asked questions

What is CVE-2026-75880?: 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.
How severe is CVE-2026-75880?: CVE-2026-75880 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-75880 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-75880?: CVE-2026-75880 affects Apache Artemis. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-75880?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-75880 published?: CVE-2026-75880 was published on 2026-09-10 and last updated on 2026-09-18.

References

Affected products (1)

cpe:2.3:a:apache:artemis:*:*:*:*:*:*:*:*

More vulnerabilities in Apache Artemis

CVE-2026-57967 — Critical (CVSS 9.8): An unauthenticated remote attacker can craft a CORE protocol SESSION_REATTACH packet to steal an existing session and…
CVE-2026-27446 — Critical (CVSS 9.8): Missing Authentication for Critical Function (CWE-306) vulnerability in Apache Artemis, Apache ActiveMQ Artemis. An…
CVE-2026-67593 — Critical (CVSS 9.1): A remote attacker can craft an Openwire RemoveSubscriptionInfo command to cause the deletion of a queue on the Artemis…
CVE-2026-49364 — Critical (CVSS 9.1): An unauthenticated network-adjacent attacker can leverage discovery to capture cluster administrative credentials…
CVE-2023-50780 — High (CVSS 8.8): Apache ActiveMQ Artemis allows access to diagnostic information and controls through MBeans, which are also exposed…
CVE-2026-49363 — High (CVSS 7.5): An unauthenticated remote attacker connecting with the CORE protocol can discover cluster node details by sending a…

All CVEs affecting Apache Artemis →

Other CWE-1333 vulnerabilities

CVE-2026-82617 — Critical (CVSS 9.8): The two built-in name-finder patterns exposed by opennlp.tools.namefind.RegexNameFinderFactory -…
CVE-2026-35458 — Critical (CVSS 9.8): Gotenberg is an API for converting document formats. In 8.29.1 and earlier, Gotenberg uses dlclark/regexp2 to compile…
CVE-2023-29486 — Critical (CVSS 9.8): An issue was discovered in Heimdal Thor agent versions 3.4.2 and before 3.7.0 on Windows, allows attackers to bypass…
CVE-2026-25547 — Critical (CVSS 9.2): @isaacs/brace-expansion is a hybrid CJS/ESM TypeScript fork of brace-expansion. Prior to version 5.0.1,…
CVE-2023-29487 — Critical (CVSS 9.1): An issue was discovered in Heimdal Thor agent versions 3.4.2 and before on Windows and 2.6.9 and before on macOS,…
CVE-2026-106104 — High (CVSS 8.7): Quasar Framework is a framework for building high-performance Vue.js user interfaces. Prior to 2.23.3,…

Browse all CWE-1333 vulnerabilities →