Bug 2511324 (CVE-2026-67588) - CVE-2026-67588 org.apache.qpid/protonj2: Apache Qpid ProtonJ2: Denial of Service via unbounded symbol value caching
Summary: CVE-2026-67588 org.apache.qpid/protonj2: Apache Qpid ProtonJ2: Denial of Serv...
Keywords:
Status: NEW
Alias: CVE-2026-67588
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-05 06:01 UTC by OSIDB Bzimport
Modified: 2026-09-21 14:40 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:69459 0 None None None 2026-09-21 14:40:24 UTC

Description OSIDB Bzimport 2026-08-05 06:01:30 UTC 
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.
Comment 1 Jon Orris 2026-09-21 14:40:23 UTC 
This issue has been addressed in the following products:

  AMQ Clients 2026.Q3

Via RHSA-2026:69459 https://access.redhat.com/errata/RHSA-2026:69459
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