CVE-2026-92550: Qpid Broker-J 10.1.0 DoS via type size/count allocation overflow
CVE-2026-92550 Published on September 25, 2026
Apache Qpid Broker-J: Type size/count handling can lead to excessive allocation pre-authentication in the AMQP 0-8/0-9/0-9-1 decoder
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 Broker-J: through 10.1.0.
Users are recommended to upgrade to version 10.1.1, which fixes the issue.
Vulnerability Analysis
CVE-2026-92550 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
What is a Stack Exhaustion Vulnerability?
The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated.
CVE-2026-92550 has been classified to as a Stack Exhaustion vulnerability or weakness.
Products Associated with CVE-2026-92550
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Affected Versions
Apache Software Foundation Apache Qpid Broker-J:- Before and including 10.1.0 is affected.