CVE-2026-66257

A pre-authentication attacker could leverage unbounded symbol value caching to cause resource exhaustion leading to denial of service. This issue affects Apache Qpid Proton-J: through 0.34.1. Users are recommended to upgrade to version 0.35.0, which fixes the issue...

CVE-2026-66257

The CVE-2026-66257 entry applies to Apache Qpid Proton-J up to version 0.34.1. The root cause is unbounded symbol value caching, which allows a pre-authentication attacker to exhaust resources and cause denial of service. The available sources consistently report the impact as resource exhaustion...