{"id":"CVE-2026-50750","state":"PUBLISHED","title":"Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All: Pre-authentication OpenWire DoS following fix for CVE-2026-49270","description":"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.","publishedAt":"2026-06-30T09:51:57.035Z","updatedAt":"2026-06-30T13:21:45.456Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"apache","products":["Apache Software Foundation Apache ActiveMQ Broker","Apache Software Foundation Apache ActiveMQ","Apache Software Foundation Apache ActiveMQ All"],"affected":[{"vendor":"Apache Software Foundation","product":"Apache ActiveMQ Broker","packageName":"org.apache.activemq:activemq-broker","defaultStatus":"unaffected","versions":[{"version":"5.19.7","status":"affected","lessThan":"5.19.8","versionType":"semver"},{"version":"6.2.6","status":"affected","lessThan":"6.2.7","versionType":"semver"}],"collectionURL":"https://repo.maven.apache.org/maven2"},{"vendor":"Apache Software Foundation","product":"Apache ActiveMQ","packageName":"org.apache.activemq:apache-activemq","defaultStatus":"unaffected","versions":[{"version":"5.19.7","status":"affected","lessThan":"5.19.8","versionType":"semver"},{"version":"6.2.6","status":"affected","lessThan":"6.2.7","versionType":"semver"}],"collectionURL":"https://repo.maven.apache.org/maven2"},{"vendor":"Apache Software Foundation","product":"Apache ActiveMQ All","packageName":"org.apache.activemq:activemq-all","defaultStatus":"unaffected","versions":[{"version":"5.19.7","status":"affected","lessThan":"5.19.8","versionType":"semver"},{"version":"6.2.6","status":"affected","lessThan":"6.2.7","versionType":"semver"}],"collectionURL":"https://repo.maven.apache.org/maven2"}],"references":["https://lists.apache.org/thread/nhkmbdym61yp6wwy0dny8w1p46sm87kr"],"weaknesses":["CWE-400"],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/50xxx/CVE-2026-50750.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-50750","state":"PUBLISHED","datePublished":"2026-06-30T09:51:57.035Z","dateUpdated":"2026-06-30T13:21:45.456Z","assignerShortName":"apache","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateReserved":"2026-06-06T19:20:20.134Z"},"containers":{"cna":{"title":"Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All: Pre-authentication OpenWire DoS following fix for CVE-2026-49270","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Apache Software Foundation","product":"Apache ActiveMQ Broker","packageName":"org.apache.activemq:activemq-broker","defaultStatus":"unaffected","versions":[{"version":"5.19.7","status":"affected","lessThan":"5.19.8","versionType":"semver"},{"version":"6.2.6","status":"affected","lessThan":"6.2.7","versionType":"semver"}],"collectionURL":"https://repo.maven.apache.org/maven2"},{"vendor":"Apache Software Foundation","product":"Apache ActiveMQ","packageName":"org.apache.activemq:apache-activemq","defaultStatus":"unaffected","versions":[{"version":"5.19.7","status":"affected","lessThan":"5.19.8","versionType":"semver"},{"version":"6.2.6","status":"affected","lessThan":"6.2.7","versionType":"semver"}],"collectionURL":"https://repo.maven.apache.org/maven2"},{"vendor":"Apache Software Foundation","product":"Apache ActiveMQ All","packageName":"org.apache.activemq:activemq-all","defaultStatus":"unaffected","versions":[{"version":"5.19.7","status":"affected","lessThan":"5.19.8","versionType":"semver"},{"version":"6.2.6","status":"affected","lessThan":"6.2.7","versionType":"semver"}],"collectionURL":"https://repo.maven.apache.org/maven2"}],"references":[{"url":"https://lists.apache.org/thread/nhkmbdym61yp6wwy0dny8w1p46sm87kr","tags":["vendor-advisory"]}],"metrics":[{"other":{"content":{"text":"important"},"type":"Textual description of severity"}}],"problemTypes":[{"descriptions":[{"description":"Denial of Service via Out of Memory","lang":"en"}]}],"providerMetadata":{"shortName":"apache","orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateUpdated":"2026-06-30T09:51:57.035Z"},"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-06-30T13:21:40.113842Z","id":"CVE-2026-50750","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-400","type":"CWE","lang":"en","description":"CWE-400 Uncontrolled Resource Consumption"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-30T13:21:45.456Z"}}]}}}