CVE-2026-67231

RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.0, The trust-store plugin installs a verifyfun that overrides badcert, unknownca / badcert, selfsignedpeer when the presented cert "matches" a whitelisted one. The match key is extractissuerid/...

CVE-2026-67231

RabbitMQ (messaging and streaming broker) is vulnerable to a TLS client-authentication bypass in versions prior to 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.0. When the trust-store plugin is enabled and used as the verify_fun, the system improperly validates certificates by matching only the Issuer...