{"id":"CVE-2026-49364","title":"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 Act…","summary":"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 Act…","severity":"critical","cvss":9.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","cwe":["CWE-306"],"vendor":"apache","product":"artemis","affected":["artemis >= 1.0.0, < 2.44.0","artemis >= 2.50.0, < 2.57.0"],"patched":["artemis 2.57.0"],"published":"2026-09-10","updated":"2026-09-16","sourceUpdated":"2026-09-16T01:10:31.487","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-49364","references":[{"url":"https://lists.apache.org/thread/4qbgcz3k38q30bfbf7hphtomrdc8l8n8","label":"security@apache.org"},{"url":"http://www.openwall.com/lists/oss-security/2026/09/10/3","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-49364.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-49364"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2478013"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-49364"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-49364"},{"url":"https://access.redhat.com/errata/RHSA-2026:66545"},{"url":"https://access.redhat.com/errata/RHSA-2026:66488"},{"url":"https://access.redhat.com/errata/RHSA-2026:67604"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00377,"epssPercentile":0.31497,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-09-10T15:54:10.664215Z"},"ingestedAt":"2026-09-11T14:42:19.872Z","scores":{"nvd":9.1,"vendor":8},"slug":"CVE-2026-49364","body":"## Overview\n\nAn 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.\n\n## Affected\n\n- `artemis >= 1.0.0, < 2.44.0`\n- `artemis >= 2.50.0, < 2.57.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `artemis 2.57.0`\n\n## Vendor advisories\n\n- **RHSA-2026:66545** · Red Hat · fixed in: Red Hat AMQ Broker 7.13.6 · released 2026-09-10 · [advisory](https://access.redhat.com/errata/RHSA-2026:66545)\n- **RHSA-2026:66488** · Red Hat · fixed in: Red Hat AMQ Broker 7.14.1 · released 2026-09-10 · [advisory](https://access.redhat.com/errata/RHSA-2026:66488)\n- **Red Hat VEX** · Important · affected: Red Hat JBoss Enterprise Application Platform 8 · no fix planned: Red Hat JBoss Enterprise Application Platform 8 · updated 2026-09-18 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-49364.json)\n- **RHSA-2026:67604** · Red Hat · fixed in: Red Hat JBoss EAP 7.4 ELS for RHEL 7 Server, Red Hat JBoss EAP 7.4 ELS for RHEL 8, Red Hat JBoss EAP 7.4 ELS for RHEL 9 · released 2026-09-15 · [advisory](https://access.redhat.com/errata/RHSA-2026:67604)","depth":"midnight","depthScore":50,"depthScoreParts":{"impact":50.1,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":50216,"id":"CVE-2026-49364","ts":1789059486944,"field":"cvss","old":null,"new":"9.1"},{"seq":50215,"id":"CVE-2026-49364","ts":1789059486944,"field":"severity","old":"none","new":"critical"}]}