CVE-2026-42588

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The default Jolokia access policy permits exec operations on all ActiveMQ MBeans (org.apache.activemq:*), including<br>BrokerService.addNetworkConnector(String).<br><br>An authenticated attacker can invoke these operations with a crafted discovery URI that triggers the VM transport's brokerConfig parameter using the \"<span style=\"background-color: rgb(255, 255, 255);\">masterslave:// \" URL which can allow loading a</span>&nbsp;Spring XML application context using ResourceXmlApplicationContext.<br>Because Spring's ResourceXmlApplicationContext instantiates all singleton beans before the BrokerService validates the configuration, arbitrary code execution occurs on the broker's JVM through bean factory methods such as Runtime.exec().<br><p>This issue affects Apache ActiveMQ Broker: before 5.19.7, from 6.0.0 before 6.2.6; Apache ActiveMQ All: before 5.19.7, from 6.0.0 before 6.2.6; Apache ActiveMQ: before 5.19.7, from 6.0.0 before 6.2.6.</p><p>Users are recommended to upgrade to version 5.19.7 or 6.2.6, which fixes the issue.</p>"}], "value": "Improper Input Validation, Improper Control of Generation of Code ('Code Injection') vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ.\n\nApache ActiveMQ Classic exposes the Jolokia JMX-HTTP bridge at /api/jolokia/ on the web console. The default Jolokia access policy permits exec operations on all ActiveMQ MBeans (org.apache.activemq:*), including\nBrokerService.addNetworkConnector(String).\n\nAn authenticated attacker can invoke these operations with a crafted discovery URI that triggers the VM transport's brokerConfig parameter using the \"masterslave:// \" URL which can allow loading a\u00a0Spring XML application context using ResourceXmlApplicationContext.\nBecause Spring's ResourceXmlApplicationContext instantiates all singleton beans before the BrokerService validates the configuration, arbitrary code execution occurs on the broker's JVM through bean factory methods such as Runtime.exec().\nThis issue affects Apache ActiveMQ Broker: before 5.19.7, from 6.0.0 before 6.2.6; Apache ActiveMQ All: before 5.19.7, from 6.0.0 before 6.2.6; Apache ActiveMQ: before 5.19.7, from 6.0.0 before 6.2.6.\n\nUsers are recommended to upgrade to version 5.19.7 or 6.2.6, which fixes the issue."}], "metrics": [{"other": {"content": {"text": "important"}, "type": "Textual description of severity"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-20", "description": "CWE-20 Improper Input Validation", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-94", "description": "CWE-94 Improper Control of Generation of Code ('Code Injection')", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-06-01T07:23:17.287Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://lists.apache.org/thread/ns0zktfo16s9ql2mmtqtlb6p6xcs45xm"}], "source": {"discovery": "UNKNOWN"}, "title": "Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ: Remote Code Execution via Jolokia addNetworkConnector", "x_generator": {"engine": "Vulnogram 0.2.0"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/05/31/18"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-06-01T07:47:43.660Z"}}, {"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-06-01T00:00:00+00:00", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-42588"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-02T03:55:44.029Z"}}]}}

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The default Jolokia access policy permits exec operations on all ActiveMQ MBeans (org.apache.activemq:*), including\nBrokerService.addNetworkConnector(String).\n\nAn authenticated attacker can invoke these operations with a crafted discovery URI that triggers the VM transport's brokerConfig parameter using the \"masterslave:// \" URL which can allow loading a\u00a0Spring XML application context using ResourceXmlApplicationContext.\nBecause Spring's ResourceXmlApplicationContext instantiates all singleton beans before the BrokerService validates the configuration, arbitrary code execution occurs on the broker's JVM through bean factory methods such as Runtime.exec().\nThis issue affects Apache ActiveMQ Broker: before 5.19.7, from 6.0.0 before 6.2.6; Apache ActiveMQ All: before 5.19.7, from 6.0.0 before 6.2.6; Apache ActiveMQ: before 5.19.7, from 6.0.0 before 6.2.6.\n\nUsers are recommended to upgrade to version 5.19.7 or 6.2.6, which fixes the issue.", "supportingMedia": [{"type": "text/html", "value": "<p>Improper Input Validation, Improper Control of Generation of Code ('Code Injection') vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ.</p>Apache ActiveMQ Classic exposes the Jolokia JMX-HTTP bridge at /api/jolokia/ on the web console. 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The default Jolokia access policy permits exec operations on all ActiveMQ MBeans (org.apache.activemq:*), including\nBrokerService.addNetworkConnector(String).\n\nAn authenticated attacker can invoke these operations with a crafted discovery URI that triggers the VM transport's brokerConfig parameter using the \"masterslave:// \" URL which can allow loading a\u00a0Spring XML application context using ResourceXmlApplicationContext.\nBecause Spring's ResourceXmlApplicationContext instantiates all singleton beans before the BrokerService validates the configuration, arbitrary code execution occurs on the broker's JVM through bean factory methods such as Runtime.exec().\nThis issue affects Apache ActiveMQ Broker: before 5.19.7, from 6.0.0 before 6.2.6; Apache ActiveMQ All: before 5.19.7, from 6.0.0 before 6.2.6; Apache ActiveMQ: before 5.19.7, from 6.0.0 before 6.2.6.\n\nUsers are recommended to upgrade to version 5.19.7 or 6.2.6, which fixes the issue."}, {"lang": "es", "value": "Validaci\u00f3n de entrada incorrecta, vulnerabilidad de control incorrecto de la generaci\u00f3n de c\u00f3digo ('Inyecci\u00f3n de C\u00f3digo') en Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ.\n\nApache ActiveMQ Classic expone el puente JMX-HTTP de Jolokia en /api/jolokia/ en la consola web. La pol\u00edtica de acceso predeterminada de Jolokia permite operaciones exec en todos los MBeans de ActiveMQ (org.apache.activemq:*), incluyendo BrokerService.addNetworkConnector(String).\n\nUn atacante autenticado puede invocar estas operaciones con una URI de descubrimiento manipulada que activa el par\u00e1metro brokerConfig del transporte VM utilizando la URL 'masterslave:// ' lo que puede permitir la carga de un contexto de aplicaci\u00f3n Spring XML utilizando ResourceXmlApplicationContext.\nDebido a que ResourceXmlApplicationContext de Spring instancia todos los beans singleton antes de que BrokerService valide la configuraci\u00f3n, se produce la ejecuci\u00f3n de c\u00f3digo arbitrario en la JVM del broker a trav\u00e9s de m\u00e9todos de f\u00e1brica de beans como Runtime.exec().\nEste problema afecta a Apache ActiveMQ Broker: anterior a 5.19.7, desde 6.0.0 anterior a 6.2.6; Apache ActiveMQ All: anterior a 5.19.7, desde 6.0.0 anterior a 6.2.6; Apache ActiveMQ: anterior a 5.19.7, desde 6.0.0 anterior a 6.2.6.\n\nSe recomienda a los usuarios actualizar a la versi\u00f3n 5.19.7 o 6.2.6, lo que soluciona el problema."}], "id": "CVE-2026-42588", "lastModified": "2026-07-22T07:10:00.107", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.2, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-42588", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-06-01T00:00:00+00:00", "version": "2.0.3"}}]}, "published": "2026-06-01T09:16:19.137", "references": [{"source": "security@apache.org", "tags": ["Mailing List", "Vendor Advisory"], "url": "https://lists.apache.org/thread/ns0zktfo16s9ql2mmtqtlb6p6xcs45xm"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2026/05/31/18"}], "sourceIdentifier": "security@apache.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}, {"lang": "en", "value": "CWE-94"}], "source": "security@apache.org", "type": "Secondary"}]}

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