{"id":"CVE-2026-66276","summary":"Apache Qpid Proton-J: Unbounded disposition range handling can lead to denial of service","details":"An authenticated attacker can craft a disposition frame with large or illegal ranges causing excessive CPU usage due to naive range handling, leading to denial of service.\n\nThis issue affects Apache Qpid Proton-J: through 0.34.1.\n\nUsers are recommended to upgrade to version 0.35.0, which fixes the issue.","modified":"2026-08-12T03:51:42.207976118Z","published":"2026-08-05T05:39:30.605Z","database_specific":{"unresolved_ranges":[{"extracted_events":[{"last_affected":"0.34.1"}],"source":"AFFECTED_FIELD"},{"extracted_events":[{"fixed":"0.34.1"}],"source":"DESCRIPTION"}],"cna_assigner":"apache","cwe_ids":["CWE-606"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/66xxx/CVE-2026-66276.json"},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/08/04/12"},{"type":"WEB","url":"https://repo.maven.apache.org/maven2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/66xxx/CVE-2026-66276.json"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/14nj0lpsqpnd3q0hw0t0tw44qvdo1jc2"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-66276"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/apache/qpid-proton-j","events":[{"introduced":"0"},{"fixed":"743eecb20a8d7592d953147984c3e84b9d05b070"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"0.35.0"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:apache:qpid_proton-j:*:*:*:*:*:*:*:*"}}],"versions":["0.34.0","0.33.10","0.33.9","0.33.8","0.33.7","0.33.6","0.33.5","0.33.4","0.33.3","0.33.2","0.33.1","0.33.0","0.32.0","0.31.0","0.30.0","0.29.0","0.28.1","0.28.0","0.27.1","0.27.0-rc2","0.27.0","0.27.0-rc1","0.26.0","0.25.0","0.24.0","0.23.0","0.22.0","0.21.0","0.20.0","0.19.0","0.18.0","0.17.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-66276.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}