CVE-2026-92550: 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

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-25 · updated 2026-10-05
Weakness: CWE-789

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 Broker-J: through 10.1.0. Users are recommended to upgrade to version 10.1.1, which fixes the issue.

Affected products

Apache Software Foundation Apache Qpid Broker-J: before 10.1.1 — fixed in 10.1.1

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache Qpid Broker-J 10.1.1. Check the vendor advisory for mitigations.

References

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