{"id":28244,"date":"2026-09-24T08:31:36","date_gmt":"2026-09-24T00:31:36","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-66067"},"modified":"2026-09-24T08:31:36","modified_gmt":"2026-09-24T00:31:36","slug":"cve-2026-66067","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-66067","title":{"rendered":"CVE-2026-66067 &#8211; RabbitMQ is a messaging and streaming broker. Prior to versions 4.2.7 and 4.3.1, The strea"},"content":{"rendered":"<p>RabbitMQ is a messaging and streaming broker. Prior to versions 4.2.7 and 4.3.1, The stream open handler calls only check_vhost_access; it omits the node\/vhost\/user connection-limit checks that rabbit_reader performs for AMQP. A developer %% FIXME comment at the cited line explicitly acknowledges the gap. No compensating enforcement exists in connection tracking or elsewhere in rabbitmq_stream. An authenticated tenant can fully bypass operator-configured per-user and per-vhost connection caps by connecting via port 5552 instead of 5672. Preconditions include rabbitmq_stream plugin enabled Authenticated stream-protocol credentials Operator relies on per-user\/per-vhost connection limits for tenant isolation. This issue is fixed in versions 4.2.7 and 4.3.1.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>RabbitMQ is a messaging and streaming broker. Prior to versions 4.2.7 and 4.3.1, The stream open handler calls only check_vhost_access; it omits the node\/vhost\/user connection-limit checks that rabbit<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-28244","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/28244","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=28244"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=28244"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=28244"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}