{"id":"CVE-2026-49270","aliases":["BIT-activemq-2026-49270","GHSA-hf52-78x8-6w3w"],"url":"https://o3.security/vulnerability/CVE-2026-49270","summary":"Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All: Durable Subscription Disclosure via Crafted BrokerInfo (OpenWire)","details":"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, 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.\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.","published":"2026-06-01T07:19:34.391Z","modified":"2026-08-12T03:51:27.734691282Z","cvss":{"score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},"epss":{"score":0.00369,"percentile":0.29531,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.apache.activemq:apache-activemq","fixedVersion":"5.19.7"},{"ecosystem":"Maven","name":"org.apache.activemq:apache-activemq","fixedVersion":"6.2.6"},{"ecosystem":"Maven","name":"org.apache.activemq:activemq-broker","fixedVersion":"5.19.7"},{"ecosystem":"Maven","name":"org.apache.activemq:activemq-broker","fixedVersion":"6.2.6"},{"ecosystem":"Maven","name":"org.apache.activemq:activemq-all","fixedVersion":"5.19.7"},{"ecosystem":"Maven","name":"org.apache.activemq:activemq-all","fixedVersion":"6.2.6"}],"fix":null,"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/05/31/22"},{"type":"WEB","url":"https://repo.maven.apache.org/maven2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49270.json"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/k3233c1x506z3w7x4z0dqvd86d4v2fr2"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-49270"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:27.734691282Z"}}