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Message-ID: <5af25190-5423-2e94-a093-89b0467932a0@apache.org>
Date: Tue, 04 Aug 2026 17:49:39 +0000
From: Robbie Gemmell <robbie@...che.org>
To: oss-security@...ts.openwall.com
Subject: CVE-2026-66273: Apache Qpid Proton-J: Type size/count handling can
lead to excessive allocation pre-authentication
Severity: important
Affected versions:
- Apache Qpid Proton-J (org.apache.qpid:proton-j) through 0.34.1
Description:
A pre-authentication attacker could leverage type size/count handling to cause excessive allocation leading to potential denial of service.
This issue affects Apache Qpid Proton-J: through 0.34.1.
Users are recommended to upgrade to version 0.35.0, which fixes the issue.
References:
https://qpid.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-66273
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