A pre-authentication attacker could leverage type size/count handling to cause excessive allocation leading to potential denial of service. This issue affects Apache Qpid Proton-J: through 0.34.1. Users are recommended to upgrade to version 0.35.0, which fixes the issue.
History

Thu, 06 Aug 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 05 Aug 2026 07:15:00 +0000

Type Values Removed Values Added
First Time appeared Apache
Apache qpid Proton-j
Vendors & Products Apache
Apache qpid Proton-j

Wed, 05 Aug 2026 05:30:00 +0000

Type Values Removed Values Added
Description A pre-authentication attacker could leverage type size/count handling to cause excessive allocation leading to potential denial of service. This issue affects Apache Qpid Proton-J: through 0.34.1. Users are recommended to upgrade to version 0.35.0, which fixes the issue.
Title Apache Qpid Proton-J: Type size/count handling can lead to excessive allocation pre-authentication
Weaknesses CWE-789
References

cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published: 2026-08-05T05:23:31.964Z

Updated: 2026-08-06T13:48:38.834Z

Reserved: 2026-07-24T11:27:24.425Z

Link: CVE-2026-66273

cve-icon Vulnrichment

Updated: 2026-08-05T06:57:50.909Z

cve-icon NVD

Status : Analyzed

Published: 2026-08-05T06:16:38.593

Modified: 2026-08-07T12:39:01.270

Link: CVE-2026-66273

cve-icon Redhat

No data.