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.
Published: 2026-08-05
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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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

Subscriptions

Apache Qpid Proton-j
cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

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

No data.

cve-icon Redhat

Severity : Important

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

Links: CVE-2026-67588 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-05T14:15:07Z

Weaknesses