Artemis-core-client: unsafe reflection in apache activemq artemis federation message deserialization
Summary
| CVE | CVE-2026-101292 |
|---|---|
| State | PUBLISHED |
| Assigner | redhat |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-28 13:17:21 UTC |
| Updated | 2026-10-20 17:17:27 UTC |
| Description | 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. |
Risk And Classification
Primary CVSS: v3.1 8.2 HIGH from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
EPSS: 0.004280000 probability, percentile 0.357530000 (date 2026-10-20)
Problem Types: CWE-470 | CWE-470 Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 8.2 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H |
| 3.1 | CNA | CVSS | 8.2 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
LowAvailability
HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4.25 | Not specified | Not specified |
| CNA | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS On RHEL 7 | unaffected 0:2.16.0-22.redhat_00057.1.el7eap * rpm | Not specified |
| CNA | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS On RHEL 7 | unaffected 0:2.3.14-11.SP11_redhat_00001.1.el7eap * rpm | Not specified |
| CNA | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS On RHEL 7 | unaffected 0:1.5.26-2.Final_redhat_00001.1.el7eap * rpm | Not specified |
| CNA | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS On RHEL 7 | unaffected 0:2.18.8-1.redhat_00003.1.el7eap * rpm | Not specified |
| CNA | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS On RHEL 7 | unaffected 0:2.18.8-1.redhat_00003.1.el7eap * rpm | Not specified |
| CNA | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS On RHEL 7 | unaffected 0:2.18.8-1.redhat_00003.1.el7eap * rpm | Not specified |
| CNA | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS On RHEL 7 | unaffected 0:2.18.8-1.redhat_00003.1.el7eap * rpm | Not specified |
| CNA | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS On RHEL 7 | unaffected 0:2.18.8-1.redhat_00003.1.el7eap * rpm | Not specified |
| CNA | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS On RHEL 7 | unaffected 0:2.18.8-1.redhat_00003.1.el7eap * rpm | Not specified |
| CNA | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS On RHEL 7 | unaffected 0:5.0.31-3.SP2_redhat_00001.1.el7eap * rpm | Not specified |
| CNA | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS On RHEL 7 | unaffected 0:1.10.0-46.Final_redhat_00044.1.el7eap * rpm | Not specified |
| CNA | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS On RHEL 7 | unaffected 0:4.1.135-1.Final_redhat_00001.1.el7eap * rpm | Not specified |
| CNA | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS On RHEL 7 | unaffected 0:4.1.135-1.Final_redhat_00001.1.el7eap * rpm | Not specified |
| CNA | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS On RHEL 7 | unaffected 0:2.5.5-30.SP12_redhat_00020.1.el7eap * rpm | Not specified |
| CNA | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS On RHEL 7 | unaffected 0:2.5.5-24.SP12_redhat_00016.1.el7eap * rpm | Not specified |
| CNA | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS On RHEL 7 | unaffected 0:2.2.40-2.SP3_redhat_00001.1.el7eap * rpm | Not specified |
| CNA | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS On RHEL 7 | unaffected 0:7.4.25-2.GA_redhat_00001.1.el7eap * rpm | Not specified |
| CNA | Red Hat | Red Hat AMQ Broker 7 | Not specified | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| access.redhat.com/errata/RHSA-2026:53806 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:53644 | [email protected] | access.redhat.com | |
| bugzilla.redhat.com/show_bug.cgi | [email protected] | bugzilla.redhat.com | |
| access.redhat.com/security/cve/CVE-2026-101292 | [email protected] | access.redhat.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-05-28T21:41:41.272Z | Reported to Red Hat. |
| CNA | 2026-08-11T05:51:26.659Z | Made public. |
Workarounds
CNA: 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.
There are currently no legacy QID mappings associated with this CVE.