A pre-authentication attacker could leverage unbounded symbol value caching to cause resource exhaustion leading to denial of service. This issue affects Apache Qpid ProtonJ2: through 1.1.0. Users are recommended to upgrade to version 1.2.0, which fixes the issue.
History

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

Type Values Removed Values Added
Metrics ssvc

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


Wed, 05 Aug 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

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'}

threat_severity

Important


Wed, 05 Aug 2026 09:45:00 +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 unbounded symbol value caching to cause resource exhaustion leading to denial of service. This issue affects Apache Qpid ProtonJ2: through 1.1.0. Users are recommended to upgrade to version 1.2.0, which fixes the issue.
Title Apache Qpid ProtonJ2: Unbounded symbol value caching can lead to pre-authentication resource exhaustion
Weaknesses CWE-770
References

cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published: 2026-08-05T05:21:44.240Z

Updated: 2026-08-06T13:44:32.387Z

Reserved: 2026-07-29T20:10:04.188Z

Link: CVE-2026-67588

cve-icon Vulnrichment

Updated: 2026-08-05T06:58:12.907Z

cve-icon NVD

Status : Analyzed

Published: 2026-08-05T06:16:39.450

Modified: 2026-08-07T20:40:16.760

Link: CVE-2026-67588

cve-icon Redhat

Severity : Important

Publid Date: 2026-08-05T05:21:44Z

Links: CVE-2026-67588 - Bugzilla