CVE-2026-67588
Received Received - Intake

Denial of Service in Apache Qpid ProtonJ2

Publication date: 2026-08-05

Last updated on: 2026-08-05

Assigner: Apache Software Foundation

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.

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Meta Information

Published
2026-08-05
Last Modified
2026-08-05
Generated
2026-08-05
AI Q&A
2026-08-05
EPSS Evaluated
N/A
NVD
CVE-2026-67588
EUVD
EUVD-2026-53054

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
apache qpid_protonj2 to 1.1.0 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-770 The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

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Executive Summary

This vulnerability allows an attacker without authentication to exploit unbounded symbol value caching, causing resource exhaustion that leads to a denial of service.

Impact Analysis

An attacker could crash systems running vulnerable versions of Apache Qpid ProtonJ2, disrupting services and causing downtime.

Mitigation Strategies

Upgrade Apache Qpid ProtonJ2 to version 1.2.0 or later to address the resource exhaustion vulnerability.

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