High

Artemis-core-client: unsafe reflection in apache activemq artemis federation message deserialization

Type: advisorySource: Official CVE List1 source record

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 () and no-argument constructors (()) 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.

Announced 28 Sept 2026Source revision 1

Original source ↗

CVE-2026-101292

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-101292

Red Hat JBoss Enterprise Application Platform 7.4.25

Source reference: /containers/cna/affected/0/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7

Source reference: /containers/cna/affected/1/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7

Source reference: /containers/cna/affected/2/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7

Source reference: /containers/cna/affected/3/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7

Source reference: /containers/cna/affected/4/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7

Source reference: /containers/cna/affected/5/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7

Source reference: /containers/cna/affected/6/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7

Source reference: /containers/cna/affected/7/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7

Source reference: /containers/cna/affected/8/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7

Source reference: /containers/cna/affected/9/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7

Source reference: /containers/cna/affected/10/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7

Source reference: /containers/cna/affected/11/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7

Source reference: /containers/cna/affected/12/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7

Source reference: /containers/cna/affected/13/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7

Source reference: /containers/cna/affected/14/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7

Source reference: /containers/cna/affected/15/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7

Source reference: /containers/cna/affected/16/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7

Source reference: /containers/cna/affected/17/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Red Hat AMQ Broker 7

Source reference: /containers/cna/affected/18/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

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    ],
    "vendor": "Red Hat",
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  }
]

Related CVEs: CVE-2026-101292
Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event: #42389 · Revision 1
Added to Heist Feed: Sun, 25 Oct 2026 11:42:55 GMT
Publisher date: Mon, 28 Sep 2026 12:44:28 GMT

Read the original announcement