{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-101292", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2026-09-28T12:37:20.491Z", "datePublished": "2026-09-28T12:44:28.269Z", "dateUpdated": "2026-10-20T16:59:57.654Z" }, "containers": { "cna": { "title": "Artemis-core-client: unsafe reflection in apache activemq artemis federation message deserialization", "metrics": [ { "other": { "content": { "value": "Important", "namespace": "https://access.redhat.com/security/updates/classification/" }, "type": "Red Hat severity rating" } }, { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H", "version": "3.1" }, "format": "CVSS" } ], "descriptions": [ { "lang": "en", "value": "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." } ], "affected": [ { "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7.4.25", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected", "packageName": "artemis-core-client", "cpes": [ "cpe:/a:redhat:jboss_enterprise_application_platform:7.4" ] }, { "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "eap7-activemq-artemis", "defaultStatus": "affected", "versions": [ { "version": "0:2.16.0-22.redhat_00057.1.el7eap", "lessThan": "*", "versionType": "rpm", "status": "unaffected" } ], "cpes": [ 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