{"schema_version": "1.6.1", "id": "CVE-2026-67589", "summary": "Type size/count handling can lead to excessive allocation pre-authentication", "details": "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 version 1.2.0, which fixes the issue.", "affected": [{"ranges": [{"type": "SEMVER", "events": [{"introduced": "0"}, {"last_affected": "0"}]}]}], "references": [{"type": "WEB", "url": "https://lists.apache.org/thread/bs24x4778dh72xtfs299cy8krvdlo47q"}]}