{"id":"CVE-2020-11998","aliases":["BIT-activemq-2020-11998","GHSA-wqfh-9m4g-7x6x"],"url":"https://o3.security/vulnerability/CVE-2020-11998","summary":"Remote code execution in Apache ActiveMQ","details":"A regression has been introduced in the commit preventing JMX re-bind. By passing an empty environment map to RMIConnectorServer, instead of the map that contains the authentication credentials, it leaves ActiveMQ open to the following attack: https://docs.oracle.com/javase/8/docs/technotes/guides/management/agent.html \"A remote client could create a javax.management.loading.MLet MBean and use it to create new MBeans from arbitrary URLs, at least if there is no security manager. In other words, a rogue remote client could make your Java application execute arbitrary code.\" Mitigation: Upgrade to Apache ActiveMQ 5.15.13","published":"2020-09-10T19:15:13.083Z","modified":"2026-07-08T05:55:40.728990469Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.apache.activemq:activemq-parent","fixedVersion":"5.15.13"}],"fix":null,"references":[{"type":"WEB","url":"https://lists.apache.org/thread.html/r946488fb942fd35c6a6e0359f52504a558ed438574a8f14d36d7dcd7%40%3Ccommits.activemq.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/rb2fd3bf2dce042e0ab3f3c94c4767c96bb2e7e6737624d63162df36d%40%3Ccommits.activemq.apache.org%3E"},{"type":"ADVISORY","url":"http://activemq.apache.org/security-advisories.data/CVE-2020-11998-announcement.txt"},{"type":"ADVISORY","url":"https://www.oracle.com/security-alerts/cpujan2021.html"},{"type":"FIX","url":"https://www.oracle.com//security-alerts/cpujul2021.html"},{"type":"FIX","url":"https://www.oracle.com/security-alerts/cpuApr2021.html"},{"type":"FIX","url":"https://www.oracle.com/security-alerts/cpuoct2021.html"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T05:55:40.728990469Z"}}