{"id":"CVE-2026-67589","title":"A pre-authentication attacker could leverage type size/count handling to cause excessive allocation leading to potential denial of service.\n\nThis issue affects Apache Qpid ProtonJ2: through 1.1.0.\n\nUsers are recommended to upgrade to ver…","summary":"A pre-authentication attacker could leverage type size/count handling to cause excessive allocation leading to potential denial of service.\n\nThis issue affects Apache Qpid ProtonJ2: through 1.1.0.\n\nUsers are recommended to upgrade to ver…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-789","CWE-770"],"vendor":"apache","product":"qpid_protonj2","affected":["qpid_protonj2 < 1.2.0"],"patched":["qpid_protonj2 1.2.0"],"published":"2026-08-05","updated":"2026-08-07","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-67589","references":[{"url":"https://lists.apache.org/thread/bs24x4778dh72xtfs299cy8krvdlo47q","label":"security@apache.org"},{"url":"http://www.openwall.com/lists/oss-security/2026/08/04/28","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-67589.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-67589"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2511321"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-67589"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-67589"},{"url":"https://access.redhat.com/errata/RHSA-2026:69459"}],"tags":["nvd","csaf","vex","red-hat"],"epss":0.00494,"epssPercentile":0.41325,"ingestedAt":"2026-08-08T20:29:49.028Z","slug":"CVE-2026-67589","body":"## Overview\n\nA pre-authentication attacker could leverage type size/count handling to cause excessive allocation leading to potential denial of service.\n\nThis issue affects Apache Qpid ProtonJ2: through 1.1.0.\n\nUsers are recommended to upgrade to version 1.2.0, which fixes the issue.\n\n## Affected\n\n- `qpid_protonj2 < 1.2.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `qpid_protonj2 1.2.0`\n\n## Vendor advisories\n\n- **RHSA-2026:69459** · Red Hat · fixed in: AMQ Clients 2026.Q3 · released 2026-09-21 · [advisory](https://access.redhat.com/errata/RHSA-2026:69459)","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}