{"id":"CVE-2026-57967","title":"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 thr…","summary":"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 thr…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","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":"2026-10-09","sourceUpdated":"2026-10-09T16:17:28.943","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-57967","references":[{"url":"https://lists.apache.org/thread/fxfjqrdsnksw5f17zs3yqo864lblgv6y","label":"security@apache.org"},{"url":"http://www.openwall.com/lists/oss-security/2026/09/10/5","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/c0dem4sters/CVE-2026-57967","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-57967.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-57967"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2480638"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-57967"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-57967"},{"url":"https://access.redhat.com/errata/RHSA-2026:67604"},{"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-2026:70230"},{"url":"https://access.redhat.com/errata/RHSA-2026:70228"},{"url":"https://access.redhat.com/errata/RHSA-2026:70229"},{"url":"https://access.redhat.com/errata/RHSA-2026:67603"},{"url":"https://access.redhat.com/errata/RHSA-2026:70277"}],"tags":["nvd","exploit-available","cve.org","csaf","vex","red-hat","score-dispute"],"epss":0.01468,"epssPercentile":0.73581,"exploits":{"github":1,"githubRepos":["https://github.com/c0dem4sters/CVE-2026-57967"],"checkedAt":"2026-10-27T19:04:55.490Z"},"exploitAvailable":true,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-09-10T15:51:58.018167Z"},"scores":{"nvd":9.8,"vendor":7.4,"adp":9.8},"ingestedAt":"2026-09-12T16:25:14.591Z","slug":"CVE-2026-57967","body":"## Overview\n\nAn 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.\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-2026:67604** · 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)\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 7, Red Hat JBoss Enterprise Application Platform Expansion Pack · no fix planned: Red Hat JBoss Enterprise Application Platform 7, Red Hat JBoss Enterprise Application Platform Expansion Pack · updated 2026-10-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-57967.json)\n- **RHSA-2026:70230** · Red Hat · fixed in: Red Hat JBoss EAP 8.1 for RHEL 10 · released 2026-09-22 · [advisory](https://access.redhat.com/errata/RHSA-2026:70230)\n- **RHSA-2026:70228** · Red Hat · fixed in: Red Hat JBoss EAP 8.1 for RHEL 8 · released 2026-09-22 · [advisory](https://access.redhat.com/errata/RHSA-2026:70228)\n- **RHSA-2026:70229** · Red Hat · fixed in: Red Hat JBoss EAP 8.1 for RHEL 9 · released 2026-09-22 · [advisory](https://access.redhat.com/errata/RHSA-2026:70229)\n- **RHSA-2026:67603** · Red Hat · fixed in: Red Hat JBoss Enterprise Application Platform 7.4.25 · released 2026-09-15 · [advisory](https://access.redhat.com/errata/RHSA-2026:67603)\n- **RHSA-2026:70277** · Red Hat · fixed in: Red Hat JBoss Enterprise Application Platform 8.1 · released 2026-09-22 · [advisory](https://access.redhat.com/errata/RHSA-2026:70277)","depth":"abyssal","depthScore":66,"depthScoreParts":{"impact":53.9,"likelihood":0.3,"exploitation":12,"ransomware":0},"changes":[{"seq":218557,"id":"CVE-2026-57967","ts":1791565520346,"field":"exploit_available","old":"false","new":"true"}]}