{"id":"UBUNTU-CVE-2026-49270","details":"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.","modified":"2026-06-03T11:26:16Z","published":"2026-06-01T09:16:00Z","upstream":["CVE-2026-49270"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-49270"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-49270"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2026/05/31/22"},{"type":"REPORT","url":"https://lists.apache.org/thread/k3233c1x506z3w7x4z0dqvd86d4v2fr2"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2026/05/31/22"}],"affected":[{"package":{"name":"activemq","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/activemq?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.6.0+dfsg1-4+deb8u1ubuntu1","5.6.0+dfsg1-5","5.13.2+dfsg-2","5.13.2+dfsg-2ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"activemq","binary_version":"5.13.2+dfsg-2ubuntu0.1~esm1"},{"binary_name":"libactivemq-java","binary_version":"5.13.2+dfsg-2ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49270.json"}},{"package":{"name":"activemq","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/activemq?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.14.5-3","5.15.2-2","5.15.3-2","5.15.8-2~18.04","5.15.8-2~18.04.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"activemq","binary_version":"5.15.8-2~18.04.1~esm1"},{"binary_version":"5.15.8-2~18.04.1~esm1","binary_name":"libactivemq-java"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49270.json"}},{"package":{"name":"activemq","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/activemq?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.15.10-1","5.15.11-1","5.15.11-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"5.15.11-1ubuntu0.1~esm1","binary_name":"activemq"},{"binary_version":"5.15.11-1ubuntu0.1~esm1","binary_name":"libactivemq-java"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49270.json"}},{"package":{"name":"activemq","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/activemq?arch=source&distro=esm-apps%2Fjammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.16.1-1","5.16.1-1ubuntu0.1~esm1","5.16.1-1ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_name":"activemq","binary_version":"5.16.1-1ubuntu0.1"},{"binary_name":"libactivemq-java","binary_version":"5.16.1-1ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49270.json"}},{"package":{"name":"activemq","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/activemq?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.17.2+dfsg-2","5.17.6+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_name":"activemq","binary_version":"5.17.6+dfsg-1"},{"binary_version":"5.17.6+dfsg-1","binary_name":"libactivemq-java"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49270.json"}},{"package":{"name":"activemq","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/activemq?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.17.6+dfsg-1","5.17.6+dfsg-2"],"ecosystem_specific":{"binaries":[{"binary_name":"activemq","binary_version":"5.17.6+dfsg-2"},{"binary_name":"libactivemq-java","binary_version":"5.17.6+dfsg-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49270.json"}},{"package":{"name":"activemq","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/activemq?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.17.6+dfsg-2"],"ecosystem_specific":{"binaries":[{"binary_version":"5.17.6+dfsg-2","binary_name":"activemq"},{"binary_version":"5.17.6+dfsg-2","binary_name":"libactivemq-java"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49270.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}