{"id":"CVE-2026-57967","state":"PUBLISHED","title":"Apache Artemis, Apache ActiveMQ Artemis: Missing authentication on CORE protocol session reattachment","description":"An unauthenticated remote attacker can craft a CORE protocol SESSION_REATTACH packet to steal an existing session and assume ongoing execution of the previously authenticated session.\n\n\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":"2026-09-10T04:43:10.313Z","updatedAt":"2026-10-09T15:36:10.600Z","severity":{"score":9.8,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","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-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-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/fxfjqrdsnksw5f17zs3yqo864lblgv6y","http://www.openwall.com/lists/oss-security/2026/09/10/5","https://github.com/c0dem4sters/CVE-2026-57967"],"weaknesses":["CWE-306"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/57xxx/CVE-2026-57967.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-57967","state":"PUBLISHED","datePublished":"2026-09-10T04:43:10.313Z","dateUpdated":"2026-10-09T15:36:10.600Z","assignerShortName":"apache","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateReserved":"2026-06-26T17:05:04.459Z"},"containers":{"cna":{"title":"Apache Artemis, Apache ActiveMQ Artemis: Missing authentication on CORE protocol session reattachment","descriptions":[{"lang":"en","value":"An unauthenticated remote attacker can craft a CORE protocol SESSION_REATTACH packet to steal an existing session and assume ongoing execution of the previously authenticated session.\n\n\n\nThis issue affects Apache Artemis: from 2.50.0 through 2.56.0; 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