{"id":"CVE-2026-49364","state":"PUBLISHED","title":"Apache Artemis, Apache Artemis, Apache ActiveMQ Artemis, Apache ActiveMQ Artemis: Pre-Authentication Cluster Credential Exposure to Discovered Peers","description":"An unauthenticated network-adjacent attacker can leverage discovery to capture cluster administrative credentials during the initial cluster connection handshake.\n\nThis issue affects Apache Artemis: from 2.50.0 through 2.56.0; Apache ActiveMQ Artemis: from 1.0.0 through 2.44.0.\n\n\n\nUsers are recommended to upgrade to version 2.57.0, which fixes the issue.","publishedAt":"2026-09-10T04:49:27.014Z","updatedAt":"2026-09-10T15:54:25.139Z","severity":{"score":9.1,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","source":"CISA-ADP"},"assigner":"apache","products":["Apache Software Foundation Apache Artemis","Apache Software Foundation Apache ActiveMQ Artemis"],"affected":[{"vendor":"Apache Software Foundation","product":"Apache Artemis","packageName":"org.apache.artemis:artemis-core-client","packageURL":"pkg:maven/org.apache.artemis/artemis-core-client","defaultStatus":"unaffected","versions":[{"version":"2.50.0","status":"affected","lessThanOrEqual":"2.56.0","versionType":"semver"}],"collectionURL":"https://repo.maven.apache.org/maven2"},{"vendor":"Apache Software Foundation","product":"Apache Artemis","packageName":"org.apache.artemis:artemis-server","packageURL":"pkg:maven/org.apache.artemis/artemis-server","defaultStatus":"unaffected","versions":[{"version":"2.50.0","status":"affected","lessThanOrEqual":"2.56.0","versionType":"semver"}],"collectionURL":"https://repo.maven.apache.org/maven2"},{"vendor":"Apache Software Foundation","product":"Apache ActiveMQ Artemis","packageName":"org.apache.activemq:artemis-core-client","packageURL":"pkg:maven/org.apache.activemq/artemis-core-client","defaultStatus":"unaffected","versions":[{"version":"1.0.0","status":"affected","lessThanOrEqual":"2.44.0","versionType":"semver"}],"collectionURL":"https://repo.maven.apache.org/maven2"},{"vendor":"Apache Software Foundation","product":"Apache ActiveMQ Artemis","packageName":"org.apache.activemq:artemis-server","packageURL":"pkg:maven/org.apache.activemq/artemis-server","defaultStatus":"unaffected","versions":[{"version":"1.0.0","status":"affected","lessThanOrEqual":"2.44.0","versionType":"semver"}],"collectionURL":"https://repo.maven.apache.org/maven2"}],"references":["https://lists.apache.org/thread/4qbgcz3k38q30bfbf7hphtomrdc8l8n8","http://www.openwall.com/lists/oss-security/2026/09/10/3"],"weaknesses":["CWE-306"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/49xxx/CVE-2026-49364.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-49364","state":"PUBLISHED","datePublished":"2026-09-10T04:49:27.014Z","dateUpdated":"2026-09-10T15:54:25.139Z","assignerShortName":"apache","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateReserved":"2026-05-29T16:34:41.640Z"},"containers":{"cna":{"title":"Apache Artemis, Apache Artemis, Apache ActiveMQ Artemis, Apache ActiveMQ Artemis: Pre-Authentication Cluster Credential Exposure to Discovered Peers","descriptions":[{"lang":"en","value":"An unauthenticated network-adjacent attacker can leverage discovery to capture cluster administrative credentials during the initial cluster connection handshake.\n\nThis issue affects Apache Artemis: from 2.50.0 through 2.56.0; 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