Bug 2511341 (CVE-2026-67592)

Summary:	CVE-2026-67592 org.apache.qpid/protonj2: Apache Qpid ProtonJ2: Denial of Service via uncontrolled incoming data transfers
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability-draft	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	ataylor, ehugonne
Target Milestone:	---	Keywords:	Security
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Hardware:	All
OS:	Linux
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Doc Text:	A flaw was found in Apache Qpid ProtonJ2. An authenticated attacker could exploit a vulnerability where the system fails to limit the number of incoming data transfers. This oversight allows the attacker to consume excessive system resources, potentially leading to a denial of service (DoS), which makes the system unavailable to legitimate users.	Story Points:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-08-05 07:01:27 UTC

It was not possible to govern the maximum number of transfer frames per incoming delivery, enabling an authenticated attacker to cause excessive resource usage and potential 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