{"id":"CVE-2026-67588","summary":"Apache Qpid ProtonJ2: Unbounded symbol value caching can lead to pre-authentication resource exhaustion","details":"A pre-authentication attacker could leverage unbounded symbol value caching to cause resource exhaustion leading to 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.","modified":"2026-08-12T03:51:45.804167642Z","published":"2026-08-05T05:21:44.240Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67588.json","unresolved_ranges":[{"extracted_events":[{"last_affected":"1.1.0"}],"source":"AFFECTED_FIELD"},{"extracted_events":[{"fixed":"1.1.0"}],"source":"DESCRIPTION"}],"cna_assigner":"apache","cwe_ids":["CWE-770"]},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/08/04/27"},{"type":"WEB","url":"https://repo.maven.apache.org/maven2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67588.json"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/vk4j02dzggfdrdkwvzmqo4jro2tgj0jt"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-67588"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/apache/qpid-protonj2","events":[{"introduced":"0"},{"fixed":"3f1253e47dcc47543d4c71e205a866fcd45cb366"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"1.2.0"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:apache:qpid_protonj2:*:*:*:*:*:*:*:*"}}],"versions":["1.1.0","1.0.0","1.0.0-M23","1.0.0-M22","1.0.0-M21","1.0.0-M20","1.0.0-M19","1.0.0-M18","1.0.0-M17","1.0.0-M16","1.0.0-M15","1.0.0-M14","1.0.0-M13","1.0.0-M12","1.0.0-M11","1.0.0-M10","1.0.0-M9","1.0.0-M8","1.0.0-M7","1.0.0-M6","1.0.0-M5","1.0.0-M4","1.0.0-M3","1.0.0-M2","1.0.0-M1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-67588.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}