{"id":"CVE-2026-59878","aliases":["BIT-activemq-2026-59878","DEBIAN-CVE-2026-59878","EUVD-2026-49848","GHSA-4mq2-fjvq-8232","OESA-2026-3264","OESA-2026-3265","OESA-2026-3266","OESA-2026-3267","UBUNTU-CVE-2026-59878"],"status":"published","title":"Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All: AMQP NIO negative frame size validation bypass leading to DoS","description":"Improper Input Validation vulnerability in Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All.\n\nA remote unauthenticated peer that can reach an exposed AMQP NIO connector can trigger denial-of-service behavior by sending a frame size value. This cause the NIO threads to die and if done rapidly enough can lead to exhaustion of the NIO thread pool denying service to other connections.\nThis issue affects Apache ActiveMQ AMQP: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ All: before 5.19.9, from 6.0.0 before 6.2.8.\n\nUsers are recommended to upgrade to version 5.19.9, 6.2.8, or 6.3.0 which fixes the issue.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-12","score":0.00785,"percentile":0.56576,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20"],"published":"2026-07-28T13:33:54Z","modified":"2026-10-28T02:30:45Z","fixes":[{"ecosystem":"Bitnami","package":"activemq","fixed_in":["5.19.9","6.2.8"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"activemq","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"5.19.9"},{"introduced":"6.0.0"},{"fixed":"6.2.8"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"activemq","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.17.2+dfsg-2","5.17.2+dfsg-2+deb12u1","5.17.6+dfsg-1","5.17.6+dfsg-2"]},{"source":"osv","ecosystem":"Debian:13","package":"activemq","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.17.6+dfsg-2"]},{"source":"osv","ecosystem":"openEuler:22.03-LTS-SP4","package":"activemq","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.19.9-1.oe2203sp4"}]}],"bundled":2},{"source":"osv","ecosystem":"openEuler:24.03-LTS-SP1","package":"activemq","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.19.9-1.oe2403sp1"}]}],"bundled":2},{"source":"osv","ecosystem":"openEuler:24.03-LTS-SP3","package":"activemq","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.19.9-1.oe2403sp3"}]}],"bundled":2},{"source":"osv","ecosystem":"openEuler:24.03-LTS-SP4","package":"activemq","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.19.9-1.oe2403sp4"}]}],"bundled":2},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"activemq","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"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"activemq","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"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"activemq","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.15.10-1","5.15.11-1","5.15.11-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"activemq","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.16.1-1","5.16.1-1ubuntu0.1~esm1","5.16.1-1ubuntu0.1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"activemq","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.17.2+dfsg-2","5.17.6+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"activemq","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.17.6+dfsg-2","5.17.6+dfsg-2ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"activemq","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.17.6+dfsg-2"]}],"products":[{"vendor":"apache","product":"activemq"},{"vendor":"apache","product":"activemq_all"},{"vendor":"apache","product":"activemq_amqp"},{"vendor":"apache software foundation","product":"apache activemq"},{"vendor":"apache software foundation","product":"apache activemq all"},{"vendor":"apache software foundation","product":"apache activemq amqp"}],"references":[{"url":"https://lists.apache.org/thread/dnyx4d2oldshcj4lthso7b53y4bqmjvn","tags":["vendor-advisory","Mailing List","Vendor Advisory","advisory","report"]},{"url":"http://www.openwall.com/lists/oss-security/2026/07/27/7","tags":["Mailing List","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59878","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-4mq2-fjvq-8232"},{"url":"https://repo.maven.apache.org/maven2","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59878.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-59878","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3264","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-61487","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3265","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3266","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3267","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-59878","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-59878","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-59878","title":"Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All: AMQP NIO negative frame size validation bypass leading to DoS","description":"Improper Input Validation vulnerability in Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All.\n\nA remote unauthenticated peer that can reach an exposed AMQP NIO connector can trigger denial-of-service behavior by sending a frame size value. This cause the NIO threads to die and if done rapidly enough can lead to exhaustion of the NIO thread pool denying service to other connections.\nThis issue affects Apache ActiveMQ AMQP: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ All: before 5.19.9, from 6.0.0 before 6.2.8.\n\nUsers are recommended to upgrade to version 5.19.9, 6.2.8, or 6.3.0 which fixes the issue.","status":"published","published":"2026-07-28T13:33:54.909Z","modified":"2026-07-28T14:05:06.447Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:19:58.560602Z"}],"euvd":[{"id":"EUVD-2026-49848","description":"Improper Input Validation vulnerability in Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All.\n\nA remote unauthenticated peer that can reach an exposed AMQP NIO connector can trigger denial-of-service behavior by sending a frame size value. This cause the NIO threads to die and if done rapidly enough can lead to exhaustion of the NIO thread pool denying service to other connections.\nThis issue affects Apache ActiveMQ AMQP: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ All: before 5.19.9, from 6.0.0 before 6.2.8.\n\nUsers are recommended to upgrade to version 5.19.9, 6.2.8, or 6.3.0 which fixes the issue.","status":"published","published":"2026-07-28T13:33:54Z","modified":"2026-07-28T14:05:06Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T18:02:31.399718Z"}],"ghsa":[{"id":"GHSA-4mq2-fjvq-8232","title":"Improper Input Validation vulnerability in Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ...","description":"Improper Input Validation vulnerability in Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All.\n\nA remote unauthenticated peer that can reach an exposed AMQP NIO connector can trigger denial-of-service behavior by sending a frame size value. This cause the NIO threads to die and if done rapidly enough can lead to exhaustion of the NIO thread pool denying service to other connections.\nThis issue affects Apache ActiveMQ AMQP: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ All: before 5.19.9, from 6.0.0 before 6.2.8.\n\nUsers are recommended to upgrade to version 5.19.9, 6.2.8, or 6.3.0 which fixes the issue.","status":"published","published":"2026-07-28T15:32:17Z","modified":"2026-07-28T15:32:25Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T15:09:52.627235Z"}],"nvd":[{"id":"CVE-2026-59878","description":"Improper Input Validation vulnerability in Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All.\n\nA remote unauthenticated peer that can reach an exposed AMQP NIO connector can trigger denial-of-service behavior by sending a frame size value. This cause the NIO threads to die and if done rapidly enough can lead to exhaustion of the NIO thread pool denying service to other connections.\nThis issue affects Apache ActiveMQ AMQP: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ All: before 5.19.9, from 6.0.0 before 6.2.8.\n\nUsers are recommended to upgrade to version 5.19.9, 6.2.8, or 6.3.0 which fixes the issue.","status":"published","published":"2026-07-28T14:16:38.283Z","modified":"2026-08-05T18:46:44.583Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:12:33.249634Z"}],"osv":[{"id":"CVE-2026-59878","title":"Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All: AMQP NIO negative frame size validation bypass leading to DoS","description":"Improper Input Validation vulnerability in Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All.\n\nA remote unauthenticated peer that can reach an exposed AMQP NIO connector can trigger denial-of-service behavior by sending a frame size value. This cause the NIO threads to die and if done rapidly enough can lead to exhaustion of the NIO thread pool denying service to other connections.\nThis issue affects Apache ActiveMQ AMQP: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ All: before 5.19.9, from 6.0.0 before 6.2.8.\n\nUsers are recommended to upgrade to version 5.19.9, 6.2.8, or 6.3.0 which fixes the issue.","status":"published","published":"2026-07-28T13:33:54.909Z","modified":"2026-11-09T10:45:46.19697782Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-20"],"updated_at":"2026-11-09T10:53:57.550641Z"},{"id":"DEBIAN-CVE-2026-59878","description":"Improper Input Validation vulnerability in Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All.  A remote unauthenticated peer that can reach an exposed AMQP NIO connector can trigger denial-of-service behavior by sending a frame size value. This cause the NIO threads to die and if done rapidly enough can lead to exhaustion of the NIO thread pool denying service to other connections. This issue affects Apache ActiveMQ AMQP: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ All: before 5.19.9, from 6.0.0 before 6.2.8.  Users are recommended to upgrade to version 5.19.9, 6.2.8, or 6.3.0 which fixes the issue.","status":"published","published":"2026-07-28T14:16:38.283Z","modified":"2026-10-01T03:03:28.514508848Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:57.932517Z"},{"id":"OESA-2026-3264","title":"activemq security update","description":"The most popular and powerful open source messaging and Integration Patterns server.\r\n\r\nSecurity Fix(es):\n\nImproper Input Validation vulnerability in Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All.\n\nA remote unauthenticated peer that can reach an exposed AMQP NIO connector can trigger denial-of-service behavior by sending a frame size value. This cause the NIO threads to die and if done rapidly enough can lead to exhaustion of the NIO thread pool denying service to other connections.\nThis issue affects Apache ActiveMQ AMQP: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ All: before 5.19.9, from 6.0.0 before 6.2.8.\n\nUsers are recommended to upgrade to version 5.19.9, 6.2.8, or 6.3.0 which fixes the issue.(CVE-2026-59878)\n\nImproper Authorization vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ.\n\n An authenticated low-privilege user can bypass a per-destination\nwrite ACL by sending to an ActiveMQ temporary composite destination whose physical name is a\ncomma-separated composite of real queues. This allows publishing messages to any of the destinations in the list without proper write ACL permissions because the authorization check is bypassed due to the composite destination being marked as temporary.\nThis issue affects Apache ActiveMQ Broker: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ All: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ: before 5.19.9, from 6.0.0 before 6.2.8.\n\nUsers are recommended to upgrade to version 5.19.9, 6.2.8 or 6.3.0, which fixes the issue.(CVE-2026-61487)","status":"published","published":"2026-08-07T02:42:44Z","modified":"2026-08-07T03:00:53.74743625Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:46.823443Z"},{"id":"OESA-2026-3265","title":"activemq security update","description":"The most popular and powerful open source messaging and Integration Patterns server.\r\n\r\nSecurity Fix(es):\n\nImproper Input Validation vulnerability in Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All.\n\nA remote unauthenticated peer that can reach an exposed AMQP NIO connector can trigger denial-of-service behavior by sending a frame size value. This cause the NIO threads to die and if done rapidly enough can lead to exhaustion of the NIO thread pool denying service to other connections.\nThis issue affects Apache ActiveMQ AMQP: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ All: before 5.19.9, from 6.0.0 before 6.2.8.\n\nUsers are recommended to upgrade to version 5.19.9, 6.2.8, or 6.3.0 which fixes the issue.(CVE-2026-59878)\n\nImproper Authorization vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ.\n\n An authenticated low-privilege user can bypass a per-destination\nwrite ACL by sending to an ActiveMQ temporary composite destination whose physical name is a\ncomma-separated composite of real queues. This allows publishing messages to any of the destinations in the list without proper write ACL permissions because the authorization check is bypassed due to the composite destination being marked as temporary.\nThis issue affects Apache ActiveMQ Broker: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ All: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ: before 5.19.9, from 6.0.0 before 6.2.8.\n\nUsers are recommended to upgrade to version 5.19.9, 6.2.8 or 6.3.0, which fixes the issue.(CVE-2026-61487)","status":"published","published":"2026-08-07T02:42:47Z","modified":"2026-08-07T03:00:53.741301488Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:46.823443Z"},{"id":"OESA-2026-3266","title":"activemq security update","description":"The most popular and powerful open source messaging and Integration Patterns server.\r\n\r\nSecurity Fix(es):\n\nImproper Input Validation vulnerability in Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All.\n\nA remote unauthenticated peer that can reach an exposed AMQP NIO connector can trigger denial-of-service behavior by sending a frame size value. This cause the NIO threads to die and if done rapidly enough can lead to exhaustion of the NIO thread pool denying service to other connections.\nThis issue affects Apache ActiveMQ AMQP: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ All: before 5.19.9, from 6.0.0 before 6.2.8.\n\nUsers are recommended to upgrade to version 5.19.9, 6.2.8, or 6.3.0 which fixes the issue.(CVE-2026-59878)\n\nImproper Authorization vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ.\n\n An authenticated low-privilege user can bypass a per-destination\nwrite ACL by sending to an ActiveMQ temporary composite destination whose physical name is a\ncomma-separated composite of real queues. This allows publishing messages to any of the destinations in the list without proper write ACL permissions because the authorization check is bypassed due to the composite destination being marked as temporary.\nThis issue affects Apache ActiveMQ Broker: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ All: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ: before 5.19.9, from 6.0.0 before 6.2.8.\n\nUsers are recommended to upgrade to version 5.19.9, 6.2.8 or 6.3.0, which fixes the issue.(CVE-2026-61487)","status":"published","published":"2026-08-07T02:42:48Z","modified":"2026-08-07T03:00:52.83923407Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:46.823443Z"},{"id":"OESA-2026-3267","title":"activemq security update","description":"The most popular and powerful open source messaging and Integration Patterns server.\r\n\r\nSecurity Fix(es):\n\nImproper Input Validation vulnerability in Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All.\n\nA remote unauthenticated peer that can reach an exposed AMQP NIO connector can trigger denial-of-service behavior by sending a frame size value. This cause the NIO threads to die and if done rapidly enough can lead to exhaustion of the NIO thread pool denying service to other connections.\nThis issue affects Apache ActiveMQ AMQP: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ All: before 5.19.9, from 6.0.0 before 6.2.8.\n\nUsers are recommended to upgrade to version 5.19.9, 6.2.8, or 6.3.0 which fixes the issue.(CVE-2026-59878)\n\nImproper Authorization vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ.\n\n An authenticated low-privilege user can bypass a per-destination\nwrite ACL by sending to an ActiveMQ temporary composite destination whose physical name is a\ncomma-separated composite of real queues. This allows publishing messages to any of the destinations in the list without proper write ACL permissions because the authorization check is bypassed due to the composite destination being marked as temporary.\nThis issue affects Apache ActiveMQ Broker: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ All: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ: before 5.19.9, from 6.0.0 before 6.2.8.\n\nUsers are recommended to upgrade to version 5.19.9, 6.2.8 or 6.3.0, which fixes the issue.(CVE-2026-61487)","status":"published","published":"2026-08-07T02:42:49Z","modified":"2026-08-07T03:00:54.293334474Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:46.823443Z"},{"id":"UBUNTU-CVE-2026-59878","description":"Improper Input Validation vulnerability in Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All. A remote unauthenticated peer that can reach an exposed AMQP NIO connector can trigger denial-of-service behavior by sending a frame size value. This cause the NIO threads to die and if done rapidly enough can lead to exhaustion of the NIO thread pool denying service to other connections. This issue affects Apache ActiveMQ AMQP: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ All: before 5.19.9, from 6.0.0 before 6.2.8. Users are recommended to upgrade to version 5.19.9, 6.2.8, or 6.3.0 which fixes the issue.","status":"published","published":"2026-07-28T14:16:00Z","modified":"2026-10-17T12:59:14.520101653Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T16:56:41.911783Z"},{"id":"BIT-activemq-2026-59878","title":"Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All: AMQP NIO negative frame size validation bypass leading to DoS","description":"Improper Input Validation vulnerability in Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All.\n\nA remote unauthenticated peer that can reach an exposed AMQP NIO connector can trigger denial-of-service behavior by sending a frame size value. This cause the NIO threads to die and if done rapidly enough can lead to exhaustion of the NIO thread pool denying service to other connections.\nThis issue affects Apache ActiveMQ AMQP: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ All: before 5.19.9, from 6.0.0 before 6.2.8.\n\nUsers are recommended to upgrade to version 5.19.9, 6.2.8, or 6.3.0 which fixes the issue.","status":"published","published":"2026-08-17T05:37:29.864Z","modified":"2026-09-08T08:45:11.413395836Z","updated_at":"2026-11-02T15:28:28.267217Z"}]}}