{"id":"CVE-2026-67222","published":"2026-09-25T17:17:10.517","lastModified":"2026-09-28T14:38:38.163","description":"RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.15, 4.0.20, 4.1.11, and 4.2.6, mechanisms/1 applied list_to_atom/1 to every colon-delimited token in an attacker-controlled auth_mechanism value, permanently consuming Erlang VM atoms and allowing the node to be crashed with a large request. Exploitation requires the Shovel or Federation plugin to be in use, and setting auth_mechanism requires the policymaker tag. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":["CWE-400"],"vendors":[],"products":[],"references":[{"url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6","tags":[]},{"url":"https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-85jr-6rr2-j73r","tags":[]}],"exploitRefs":[{"url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6","tags":[]},{"url":"https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-85jr-6rr2-j73r","tags":[]}],"hasPoc":true,"ai":null}