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Message-ID: <3759be44-9ee8-55b3-304c-23554ff66201@apache.org>
Date: Tue, 04 Aug 2026 18:49:14 +0000
From: "Timothy A. Bish" <tabish@...che.org>
To: oss-security@...ts.openwall.com
Subject: CVE-2026-67591: Apache Qpid ProtonJ2: Incoming session flow
 control window can be exceeded 

Severity: important 

Affected versions:

- Apache Qpid ProtonJ2 (org.apache.qpid:protonj2) through 1.1.0

Description:

An authenticated attacker could exceed the session flow control incoming window potentially 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.

References:

https://qpid.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-67591

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