# CVE-2026-101292: Artemis-core-client: unsafe reflection in apache activemq artemis federation message deserialization

Status: published. Published: 2026-09-28. Updated: 2026-11-03.

Apache ActiveMQ Artemis before 2.34.0 contains an unsafe reflection vulnerability in FederationStreamConnectMessage.getFederationPolicy(). The method calls Class.forName(clazz).getConstructor().newInstance() where clazz is read directly from the CORE protocol wire buffer without type validation. An authenticated federation peer can send a FEDERATION_DOWNSTREAM_CONNECT packet with a crafted class name, causing the broker to load and instantiate arbitrary classes visible to the Artemis module classloader. Static initializers (<clinit>) and no-argument constructors (<init>()) execute as side effects before the type cast, enabling denial of service via system-property poisoning, out-of-memory conditions via classloading, or broker state manipulation.

## Remediation

- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability. For JBoss EAP 7.4, update to EAP 7.4.25 or later, which contains the fix delivered through RHSA-2026:53644. (source: CNA: redhat)

## Affected products and versions

- Red Hat / Red Hat JBoss Enterprise Application Platform 7.4.25 (artemis-core-client): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 (eap7-activemq-artemis): ≥ 0:2.16.0-22.redhat_00057.1.el7eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 (eap7-glassfish-jsf): ≥ 0:2.3.14-11.SP11_redhat_00001.1.el7eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 (eap7-ironjacamar): ≥ 0:1.5.26-2.Final_redhat_00001.1.el7eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 (eap7-jackson-annotations): ≥ 0:2.18.8-1.redhat_00003.1.el7eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 (eap7-jackson-core): ≥ 0:2.18.8-1.redhat_00003.1.el7eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 (eap7-jackson-databind): ≥ 0:2.18.8-1.redhat_00003.1.el7eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 (eap7-jackson-jaxrs-providers): ≥ 0:2.18.8-1.redhat_00003.1.el7eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 (eap7-jackson-modules-base): ≥ 0:2.18.8-1.redhat_00003.1.el7eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 (eap7-jackson-modules-java8): ≥ 0:2.18.8-1.redhat_00003.1.el7eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 (eap7-jboss-remoting): ≥ 0:5.0.31-3.SP2_redhat_00001.1.el7eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 (eap7-jboss-server-migration): ≥ 0:1.10.0-46.Final_redhat_00044.1.el7eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 (eap7-netty): ≥ 0:4.1.135-1.Final_redhat_00001.1.el7eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 (eap7-netty-transport-native-epoll): ≥ 0:4.1.135-1.Final_redhat_00001.1.el7eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 (eap7-picketlink-bindings): ≥ 0:2.5.5-30.SP12_redhat_00020.1.el7eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 (eap7-picketlink-federation): ≥ 0:2.5.5-24.SP12_redhat_00016.1.el7eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 (eap7-undertow): ≥ 0:2.2.40-2.SP3_redhat_00001.1.el7eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 (eap7-wildfly): ≥ 0:7.4.25-2.GA_redhat_00001.1.el7eap; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat AMQ Broker 7 (artemis-core-client): Version range not reported. Source: CNA: redhat

## Severity and prioritization

- CVSS 3.1: 8.2 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H; source: CNA: redhat

- CISA KEV: No listing in collected sources

- EPSS: 0.52% as of 2026-11-02; percentile 44.38%

- SSVC: exploitation none; automatable yes; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-470

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://access.redhat.com/errata/RHSA-2026:53644 (CNA: redhat; technical-description, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:53806 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/security/cve/CVE-2026-101292 (CNA: redhat; vdb-entry, x_refsource_REDHAT)

- https://bugzilla.redhat.com/show_bug.cgi?id=2482963 (CNA: redhat; issue-tracking, x_refsource_REDHAT)

## Provenance

- CNA: redhat: https://www.cve.org/CVERecord?id=CVE-2026-101292; retrieved 2026-11-03; source updated 2026-11-03

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-101292; retrieved 2026-11-03; source updated Not reported

Revision: 337aee6e128e92353acce0ea096b12167b3072f04af61f29284969fe0e05c260

Canonical: https://y2.dev/cve/CVE-2026-101292

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