CVE-2026-67590: Apache Qpid ProtonJ2: Unbounded type nesting can lead to pre-authentication stackoverflow

<p>Posted by Timothy A. Bish on Aug 04</p>Severity: important <br /> <br /> Affected versions:<br /> <br /> - Apache Qpid ProtonJ2 (org.apache.qpid:protonj2) through 1.1.0<br /> <br /> Description:<br /> <br /> A pre-authentication attacker could leverage type nesting to cause a StackOverflowError potentially leading to denial <br /> of service.<br /> <br /> This issue affects Apache Qpid ProtonJ2