{"id":"CVE-2020-13920","aliases":["BIT-activemq-2020-13920","DEBIAN-CVE-2020-13920","DLA-2400-1","DLA-3657-1","EUVD-2022-1253","GHSA-xgrx-xpv2-6vp4","UBUNTU-CVE-2020-13920","USN-6910-1"],"status":"published","title":"Improper Authentication in Apache ActiveMQ","description":"Apache ActiveMQ uses LocateRegistry.createRegistry() to create the JMX RMI registry and binds the server to the \"jmxrmi\" entry. It is possible to connect to the registry without authentication and call the rebind method to rebind jmxrmi to something else. If an attacker creates another server to proxy the original, and bound that, he effectively becomes a man in the middle and is able to intercept the credentials when an user connects. Upgrade to Apache ActiveMQ 5.15.12.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.04544,"percentile":0.91701,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-306"],"published":"2020-09-10T00:00:00Z","modified":"2026-10-26T12:00:35Z","fixes":[{"ecosystem":"Maven","package":"org.apache.activemq:activemq-parent","fixed_in":["5.15.12"],"sources":["ghsa","osv"]},{"ecosystem":"Bitnami","package":"activemq","fixed_in":["5.15.12"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"activemq","fixed_in":["5.16.0-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"activemq","fixed_in":["5.16.0-1"],"sources":["osv"]},{"ecosystem":"Debian:9","package":"activemq","fixed_in":["5.14.3-3+deb9u1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:16.04:LTS","package":"activemq","fixed_in":["5.13.2+dfsg-2ubuntu0.1~esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:18.04:LTS","package":"activemq","fixed_in":["5.15.8-2~18.04.1~esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:20.04:LTS","package":"activemq","fixed_in":["5.15.11-1ubuntu0.1~esm1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.apache.activemq:activemq-parent","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.12"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"activemq","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"5.15.12"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"activemq","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.16.0-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"activemq","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.16.0-1"}]}]},{"source":"osv","ecosystem":"Debian:9","package":"activemq","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.3-3+deb9u1"}]}],"versions":["5.14.3-3"]},{"source":"osv","ecosystem":"Debian:10","package":"activemq","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.16-0+deb10u1"}]}],"versions":["5.15.10-1","5.15.11-1","5.15.8-2","5.15.9-1"],"bundled":3},{"source":"osv","ecosystem":"Maven","package":"org.apache.activemq:activemq-parent","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.12"}]}],"versions":["4.1.1","4.1.2","5.0.0","5.1.0","5.10.0","5.10.1","5.10.2","5.11.0","5.11.1","5.11.2","5.11.3","5.11.4","5.12.0","5.12.1","5.12.2","5.12.3","5.13.0","5.13.1","5.13.2","5.13.3","5.13.4","5.13.5","5.14.0","5.14.1","5.14.2","5.14.3","5.14.4","5.14.5","5.15.0","5.15.1","5.15.10","5.15.11","5.15.2","5.15.3","5.15.4","5.15.5","5.15.6","5.15.7","5.15.8","5.15.9","5.2.0","5.3.0","5.3.1","5.3.2","5.4.0","5.4.1","5.4.2","5.4.3","5.5.0","5.5.1","5.6.0","5.7.0","5.8.0","5.9.0","5.9.1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"activemq","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.13.2+dfsg-2ubuntu0.1~esm1"}]}],"versions":["5.6.0+dfsg1-4+deb8u1ubuntu1","5.6.0+dfsg1-5","5.13.2+dfsg-2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"activemq","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.8-2~18.04.1~esm1"}]}],"versions":["5.14.5-3","5.15.2-2","5.15.3-2","5.15.8-2~18.04"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"activemq","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.11-1ubuntu0.1~esm1"}]}],"versions":["5.15.10-1","5.15.11-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"activemq","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.13.2+dfsg-2ubuntu0.1~esm1"}]}],"versions":["5.6.0+dfsg1-4+deb8u1ubuntu1","5.6.0+dfsg1-5","5.13.2+dfsg-2"],"bundled":6},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"activemq","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.8-2~18.04.1~esm1"}]}],"versions":["5.14.5-3","5.15.2-2","5.15.3-2","5.15.8-2~18.04"],"bundled":6},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"activemq","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.11-1ubuntu0.1~esm1"}]}],"versions":["5.15.10-1","5.15.11-1"],"bundled":6},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"activemq","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.16.1-1ubuntu0.1~esm1"}]}],"versions":["5.16.1-1"],"bundled":6}],"products":[{"vendor":"apache","product":"activemq"},{"vendor":"apache software foundation","product":"apache activemq"},{"vendor":"debian","product":"debian_linux"},{"vendor":"oracle","product":"communications_diameter_signaling_router"},{"vendor":"oracle","product":"flexcube_private_banking"}],"references":[{"url":"http://activemq.apache.org/security-advisories.data/CVE-2020-13920-announcement.txt","tags":["x_transferred","Vendor Advisory","advisory","web","report"]},{"url":"https://lists.debian.org/debian-lts-announce/2020/10/msg00013.html","tags":["mailing-list","x_transferred","Mailing List","Third Party Advisory","advisory","web"]},{"url":"https://www.oracle.com/security-alerts/cpuoct2020.html","tags":["x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://lists.apache.org/thread.html/rb2fd3bf2dce042e0ab3f3c94c4767c96bb2e7e6737624d63162df36d%40%3Ccommits.activemq.apache.org%3E","tags":["mailing-list","x_transferred","web"]},{"url":"https://lists.apache.org/thread.html/r946488fb942fd35c6a6e0359f52504a558ed438574a8f14d36d7dcd7%40%3Ccommits.activemq.apache.org%3E","tags":["mailing-list","x_transferred","web"]},{"url":"https://lists.debian.org/debian-lts-announce/2023/11/msg00013.html","tags":["mailing-list","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-13920","tags":["web","advisory"]},{"url":"https://lists.apache.org/thread.html/r946488fb942fd35c6a6e0359f52504a558ed438574a8f14d36d7dcd7@%3Ccommits.activemq.apache.org%3E","tags":["web"]},{"url":"https://lists.apache.org/thread.html/rb2fd3bf2dce042e0ab3f3c94c4767c96bb2e7e6737624d63162df36d@%3Ccommits.activemq.apache.org%3E","tags":["web"]},{"url":"https://github.com/apache/activemq/commit/359ae4b","tags":["web"]},{"url":"https://github.com/apache/activemq/commit/48cd61d","tags":["web"]},{"url":"https://github.com/apache/activemq/commit/58382283330f7c7b110c7afd8ef4ca2648786532","tags":["web"]},{"url":"https://github.com/apache/activemq/commit/b7dca5e","tags":["web"]},{"url":"https://issues.apache.org/jira/browse/AMQ-7400","tags":["web"]},{"url":"https://github.com/advisories/GHSA-xgrx-xpv2-6vp4"},{"url":"https://security-tracker.debian.org/tracker/CVE-2020-13920","tags":["advisory"]},{"url":"https://github.com/apache/activemq","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2020-13920","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-13920","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-6910-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2015-7559","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2018-11775","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2021-26117","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2022-41678","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2023-46604","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2020-13920","description":"Apache ActiveMQ uses LocateRegistry.createRegistry() to create the JMX RMI registry and binds the server to the \"jmxrmi\" entry. It is possible to connect to the registry without authentication and call the rebind method to rebind jmxrmi to something else. If an attacker creates another server to proxy the original, and bound that, he effectively becomes a man in the middle and is able to intercept the credentials when an user connects. Upgrade to Apache ActiveMQ 5.15.12.","status":"published","published":"2020-09-10T00:00:00Z","modified":"2024-08-04T12:32:14.288Z","updated_at":"2026-11-02T14:35:54.170199Z"}],"euvd":[{"id":"EUVD-2022-1253","description":"Apache ActiveMQ uses LocateRegistry.createRegistry() to create the JMX RMI registry and binds the server to the \"jmxrmi\" entry. It is possible to connect to the registry without authentication and call the rebind method to rebind jmxrmi to something else. If an attacker creates another server to proxy the original, and bound that, he effectively becomes a man in the middle and is able to intercept the credentials when an user connects. Upgrade to Apache ActiveMQ 5.15.12.","status":"published","published":"2020-09-10T00:00:00Z","modified":"2024-08-04T12:32:14Z","updated_at":"2026-11-03T03:07:35.099081Z"}],"ghsa":[{"id":"GHSA-xgrx-xpv2-6vp4","title":"Improper Authentication in Apache ActiveMQ","description":"Apache ActiveMQ uses LocateRegistry.createRegistry() to create the JMX RMI registry and binds the server to the \"jmxrmi\" entry. It is possible to connect to the registry without authentication and call the rebind method to rebind jmxrmi to something else. If an attacker creates another server to proxy the original, and bound that, he effectively becomes a man in the middle and is able to intercept the credentials when an user connects. Upgrade to Apache ActiveMQ 5.15.12.","status":"published","published":"2022-02-09T22:15:00Z","modified":"2024-03-14T21:54:19Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:37:40.81935Z"}],"nvd":[{"id":"CVE-2020-13920","description":"Apache ActiveMQ uses LocateRegistry.createRegistry() to create the JMX RMI registry and binds the server to the \"jmxrmi\" entry. It is possible to connect to the registry without authentication and call the rebind method to rebind jmxrmi to something else. If an attacker creates another server to proxy the original, and bound that, he effectively becomes a man in the middle and is able to intercept the credentials when an user connects. Upgrade to Apache ActiveMQ 5.15.12.","status":"published","published":"2020-09-10T19:15:13.16Z","modified":"2026-06-17T02:53:53.967Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:06:14.981587Z"}],"osv":[{"id":"CVE-2020-13920","description":"Apache ActiveMQ uses LocateRegistry.createRegistry() to create the JMX RMI registry and binds the server to the \"jmxrmi\" entry. It is possible to connect to the registry without authentication and call the rebind method to rebind jmxrmi to something else. If an attacker creates another server to proxy the original, and bound that, he effectively becomes a man in the middle and is able to intercept the credentials when an user connects. Upgrade to Apache ActiveMQ 5.15.12.","status":"published","published":"2020-09-10T19:15:13.16Z","modified":"2026-10-24T10:30:31.576917676Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:14.418339Z"},{"id":"DEBIAN-CVE-2020-13920","description":"Apache ActiveMQ uses LocateRegistry.createRegistry() to create the JMX RMI registry and binds the server to the \"jmxrmi\" entry. It is possible to connect to the registry without authentication and call the rebind method to rebind jmxrmi to something else. If an attacker creates another server to proxy the original, and bound that, he effectively becomes a man in the middle and is able to intercept the credentials when an user connects. Upgrade to Apache ActiveMQ 5.15.12.","status":"published","published":"2020-09-10T19:15:13.16Z","modified":"2026-10-26T12:00:35.345704908Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:32.862554Z"},{"id":"GHSA-xgrx-xpv2-6vp4","title":"Improper Authentication in Apache ActiveMQ","description":"Apache ActiveMQ uses LocateRegistry.createRegistry() to create the JMX RMI registry and binds the server to the \"jmxrmi\" entry. It is possible to connect to the registry without authentication and call the rebind method to rebind jmxrmi to something else. If an attacker creates another server to proxy the original, and bound that, he effectively becomes a man in the middle and is able to intercept the credentials when an user connects. Upgrade to Apache ActiveMQ 5.15.12.","status":"published","published":"2022-02-09T22:15:00Z","modified":"2024-03-14T22:03:23.572709Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T15:46:59.835583Z"},{"id":"UBUNTU-CVE-2020-13920","description":"Apache ActiveMQ uses LocateRegistry.createRegistry() to create the JMX RMI registry and binds the server to the \"jmxrmi\" entry. It is possible to connect to the registry without authentication and call the rebind method to rebind jmxrmi to something else. If an attacker creates another server to proxy the original, and bound that, he effectively becomes a man in the middle and is able to intercept the credentials when an user connects. Upgrade to Apache ActiveMQ 5.15.12.","status":"published","published":"2020-09-10T19:15:00Z","modified":"2026-02-04T03:34:04.185216Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:54:22.804634Z"},{"id":"BIT-activemq-2020-13920","description":"Apache ActiveMQ uses LocateRegistry.createRegistry() to create the JMX RMI registry and binds the server to the \"jmxrmi\" entry. It is possible to connect to the registry without authentication and call the rebind method to rebind jmxrmi to something else. If an attacker creates another server to proxy the original, and bound that, he effectively becomes a man in the middle and is able to intercept the credentials when an user connects. Upgrade to Apache ActiveMQ 5.15.12.","status":"published","published":"2025-12-03T14:35:12.171Z","modified":"2026-09-08T08:45:09.68046052Z","updated_at":"2026-11-02T15:28:28.267217Z"},{"id":"DLA-2400-1","title":"activemq - security update","status":"published","published":"2020-10-07T00:00:00Z","modified":"2026-03-09T01:19:05.331318Z","updated_at":"2026-11-02T15:46:10.712745Z"},{"id":"DLA-3657-1","title":"activemq - security update","status":"published","published":"2023-11-20T00:00:00Z","modified":"2026-03-09T01:21:05.966667Z","updated_at":"2026-11-02T15:46:12.203458Z"},{"id":"USN-6910-1","title":"activemq vulnerabilities","description":"Chess Hazlett discovered that Apache ActiveMQ incorrectly handled certain\ncommands. A remote attacker could possibly use this issue to terminate\nthe program, resulting in a denial of service. This issue only affected\nUbuntu 16.04 LTS. (CVE-2015-7559)\n\nPeter Stöckli discovered that Apache ActiveMQ incorrectly handled\nhostname verification. A remote attacker could possibly use this issue\nto perform a person-in-the-middle attack. This issue only affected Ubuntu\n16.04 LTS. (CVE-2018-11775)\n\nJonathan Gallimore and Colm Ó hÉigeartaigh discovered that Apache\nActiveMQ incorrectly handled authentication in certain functions.\nA remote attacker could possibly use this issue to perform a\nperson-in-the-middle attack. This issue only affected Ubuntu 16.04 LTS,\nUbuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-13920)\n\nGregor Tudan discovered that Apache ActiveMQ incorrectly handled\nLDAP authentication. A remote attacker could possibly use this issue\nto acquire unauthenticated access. This issue only affected Ubuntu 16.04\nLTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2021-26117)\n\nIt was discovered that Apache ActiveMQ incorrectly handled\nauthentication. A remote attacker could possibly use this issue to run\narbitrary code. (CVE-2022-41678)\n\nIt was discovered that Apache ActiveMQ incorrectly handled\ndeserialization. A remote attacker could possibly use this issue to run\narbitrary shell commands. (CVE-2023-46604)\n","status":"published","published":"2024-07-23T20:39:26Z","modified":"2026-06-25T13:32:28.776549331Z","updated_at":"2026-11-02T16:58:17.914523Z"}]}}