{"schema_version":"1.7.5","id":"BIT-activemq-2026-53916","published":"2026-07-06T05:47:17.009Z","modified":"2026-07-06T08:00:07.576691641Z","aliases":["CVE-2026-53916"],"summary":"Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp: Unbounded header buffer in STOMP NIO codec","details":"Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp.\n\n\nAn unauthenticated client that opens a STOMP NIO connection can send header bytes that never terminate which makes the broker buffer them without limit, exhausting the JVM heap. \nThis issue affects Apache ActiveMQ: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ All: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ Stomp: before 5.19.8, from 6.0.0 before 6.2.7.\n\nUsers are recommended to upgrade to version 6.2.7 or 5.19.8, which fixes the issue.","affected":[{"package":{"name":"activemq","ecosystem":"Bitnami","purl":"pkg:bitnami/activemq"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"5.19.8"},{"introduced":"6.0.0"},{"fixed":"6.2.7"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/activemq/BIT-activemq-2026-53916.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}],"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/06/29/13"},{"type":"WEB","url":"https://lists.apache.org/thread/07hjsj88hqgsb7vvg6ttsj56ts9vjs5n"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53916"}],"database_specific":{"cpes":["cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*"],"severity":"High"}}