CVE-2026-66257: Apache Qpid Proton-J: Unbounded symbol value caching can lead to pre-authentication resource exhaustion

<p>Posted by Robbie Gemmell on Aug 04</p>Severity: important <br /> <br /> Affected versions:<br /> <br /> - Apache Qpid Proton-J (org.apache.qpid:proton-j) through 0.34.1<br /> <br /> Description:<br /> <br /> A pre-authentication attacker could leverage unbounded symbol value caching to cause resource exhaustion leading to <br /> denial of service.<br /> <br /> This issue affects Apache Qpid Pro