CVE-2026-67552: Apache Qpid Proton Dotnet: Unbounded type nesting can lead to pre-authentication stackoverflow

Severity:

important

Affected versions:

Apache Qpid Proton Dotnet (org.apache.qpid) through 1.0.0

Description:

A pre-authentication attacker could leverage type nesting to cause a StackOverflowError potentially leading to denial of service.

This issue affects Apache Qpid Proton-Dotnet through 1.0.0.

Users are recommended to upgrade to version 1.1.0, which fixes the issue

---

• Apache
• License
• Sponsorship
• Thanks!
• Security

Apache Qpid, Messaging built on AMQP; Copyright © 2015 The Apache Software Foundation; Licensed under the Apache License, Version 2.0; Apache Qpid, Qpid, Qpid Proton, Proton, Apache, the Apache feather logo, and the Apache Qpid project logo are trademarks of The Apache Software Foundation; All other marks mentioned may be trademarks or registered trademarks of their respective owners