{"id":"CVE-2026-50750","summary":"Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All: Pre-authentication OpenWire DoS following fix for CVE-2026-49270","details":"Denial of Service via Out of Memory vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All.\n\nFollowing the fix for  CVE-2026-49270 an unauthenticated attacker can now cause broker OOM by sending an repeated BrokerInfo commands without sending a ConnectionInfo, until the broker will crash with OOM.\nThis issue affects Apache ActiveMQ Broker: from 5.19.7 before 5.19.8, from 6.2.6 before 6.2.7; Apache ActiveMQ: from 5.19.7 before 5.19.8, from 6.2.6 before 6.2.7; Apache ActiveMQ All: from 5.19.7 before 5.19.8, from 6.2.6 before 6.2.7.\n\nUsers are recommended to upgrade to version 6.2.7, which fixes the issue.","aliases":["BIT-activemq-2026-50750"],"modified":"2026-07-08T08:05:21.821633842Z","published":"2026-06-30T09:51:57.035Z","database_specific":{"cna_assigner":"apache","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50750.json","unresolved_ranges":[{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"5.19.7"},{"fixed":"5.19.8"},{"introduced":"6.2.6"},{"fixed":"6.2.7"},{"introduced":"5.19.7"},{"fixed":"5.19.8"},{"introduced":"6.2.6"},{"fixed":"6.2.7"},{"introduced":"5.19.7"},{"fixed":"5.19.8"},{"introduced":"6.2.6"},{"fixed":"6.2.7"}]},{"source":"DESCRIPTION","extracted_events":[{"introduced":"5.19.7"},{"fixed":"5.19.8"},{"introduced":"6.2.6"},{"fixed":"6.2.7"},{"introduced":"5.19.7"},{"fixed":"5.19.8"},{"introduced":"6.2.6"},{"fixed":"6.2.7"},{"introduced":"5.19.7"},{"fixed":"5.19.8"},{"introduced":"6.2.6"},{"fixed":"6.2.7"}]}]},"references":[{"type":"WEB","url":"https://repo.maven.apache.org/maven2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50750.json"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/nhkmbdym61yp6wwy0dny8w1p46sm87kr"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50750"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/apache/activemq","events":[{"introduced":"fa56d21ff2d14b99928917cc0bef2e8830acf15f"},{"last_affected":"bb9523b9847fe235a971256fec7ce6bb5670d14d"}],"database_specific":{"source":"CPE_STRING","extracted_events":[{"introduced":"5.19.7"},{"last_affected":"5.19.7"},{"introduced":"6.2.6"},{"last_affected":"6.2.6"}],"cpe":["cpe:2.3:a:apache:activemq:5.19.7:*:*:*:*:*:*:*","cpe:2.3:a:apache:activemq:6.2.6:*:*:*:*:*:*:*"]}}],"versions":["5.19.7","6.2.6"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-50750.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}