CVE-2026-49270

Exposure of Sensitive Information Through Metadata vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All. Brokers that are configured with a network connector with syncDurableSubs set to true, are vulnerable to an unauthenticated attacker who can receive a list of all durable topic subscriptions in the broker, including client identifiers, subscription names, topic destinations, and JMS selector expressions, by sending a BrokerInfo command. The broker incorrectly responds without first ensuring the connection is authenticated. This issue affects Apache ActiveMQ Broker: 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; Apache ActiveMQ All: before 5.19.7, from 6.0.0 before 6.2.6. Users are recommended to upgrade to version 6.2.6 or 5.19.7, which fixes the issue.

CVSS v3 5.9 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://lists.apache.org/thread/k3233c1x506z3w7x4z0dqvd86d4v2fr2	Mailing List Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/05/31/22	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:apache:activemq::::::::
	cpe:2.3:a:apache:activemq::::::::
	cpe:2.3:a:apache:activemq_broker::::::::
	cpe:2.3:a:apache:activemq_broker::::::::

History

No history.

Information

Published : 2026-06-01 09:16

Updated : 2026-07-22 07:10

NVD link : CVE-2026-49270

Mitre link : CVE-2026-49270

CVE.ORG link : CVE-2026-49270

JSON object : View

Products Affected

apache

activemq
activemq_broker

CWE

CWE-1230

Exposure of Sensitive Information Through Metadata

{"id": "CVE-2026-49270", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-49270", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-01T13:11:07.636211Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.2}]}, "affected": [{"source": "security@apache.org", "affectedData": [{"vendor": "Apache Software Foundation", "product": "Apache ActiveMQ Broker", "versions": [{"status": "affected", "version": "5.14.0", "lessThan": "5.19.7", "versionType": "semver"}, {"status": "affected", "version": "6.0.0", "lessThan": "6.2.6", "versionType": "semver"}], "packageName": "org.apache.activemq:activemq-broker", "collectionURL": "https://repo.maven.apache.org/maven2", "defaultStatus": "unaffected"}, {"vendor": "Apache Software Foundation", "product": "Apache ActiveMQ", "versions": [{"status": "affected", "version": "5.14.0", "lessThan": "5.19.7", "versionType": "semver"}, {"status": "affected", "version": "6.0.0", "lessThan": "6.2.6", "versionType": "semver"}], "packageName": "org.apache.activemq:activemq-all", "collectionURL": "https://repo.maven.apache.org/maven2", "defaultStatus": "unaffected"}, {"vendor": "Apache Software Foundation", "product": "Apache ActiveMQ All", "versions": [{"status": "affected", "version": "5.14.0", "lessThan": "5.19.7", "versionType": "semver"}, {"status": "affected", "version": "6.0.0", "lessThan": "6.2.6", "versionType": "semver"}], "packageName": "org.apache.activemq:apache-activemq", "defaultStatus": "unaffected"}]}], "published": "2026-06-01T09:16:20.650", "references": [{"url": "https://lists.apache.org/thread/k3233c1x506z3w7x4z0dqvd86d4v2fr2", "tags": ["Mailing List", "Vendor Advisory"], "source": "security@apache.org"}, {"url": "http://www.openwall.com/lists/oss-security/2026/05/31/22", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security@apache.org", "description": [{"lang": "en", "value": "CWE-1230"}]}], "descriptions": [{"lang": "en", "value": "Exposure of Sensitive Information Through Metadata vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All.\n\nBrokers that are configured with a network connector with syncDurableSubs set to true, are vulnerable to an unauthenticated attacker who can receive a list of all durable topic subscriptions in the broker,\u00a0including client identifiers, subscription names, topic destinations, and\u00a0JMS selector expressions, by sending a BrokerInfo command. The broker incorrectly responds without first ensuring the connection is authenticated.\nThis issue affects Apache ActiveMQ Broker: 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; Apache ActiveMQ All: before 5.19.7, from 6.0.0 before 6.2.6.\n\nUsers are recommended to upgrade to version 6.2.6 or 5.19.7, which fixes the issue."}, {"lang": "es", "value": "Exposici\u00f3n de Informaci\u00f3n Sensible a trav\u00e9s de la vulnerabilidad de metadatos en Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All.\n\nLos brokers configurados con un conector de red con syncDurableSubs establecido en true son vulnerables a un atacante no autenticado que puede recibir una lista de todas las suscripciones de temas duraderas en el broker, incluyendo identificadores de cliente, nombres de suscripci\u00f3n, destinos de tema y expresiones de selector JMS, al enviar un comando BrokerInfo. El broker responde incorrectamente sin antes asegurar que la conexi\u00f3n est\u00e9 autenticada.\nEste problema afecta a Apache ActiveMQ Broker: 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; Apache ActiveMQ All: 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 6.2.6 o 5.19.7, que corrige el problema."}], "lastModified": "2026-07-22T07:10:00.107", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "793E68E6-9024-4518-B062-42B2DE5BB555", "versionEndExcluding": "5.19.7"}, {"criteria": "cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FFF44DB9-1850-4B5F-AD0F-55CB5219AB22", "versionEndExcluding": "6.2.6", "versionStartIncluding": "6.0.0"}, {"criteria": "cpe:2.3:a:apache:activemq_broker:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FE27E832-0E65-4D05-A2EE-271152799E96", "versionEndExcluding": "5.19.7"}, {"criteria": "cpe:2.3:a:apache:activemq_broker:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "94F0DB6E-BEF4-4BEB-92F5-3A7B65172CC2", "versionEndExcluding": "6.2.6", "versionStartIncluding": "6.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "security@apache.org"}