{"id":"AZL-105293","summary":"CVE-2026-67227 affecting package rabbitmq-server 3.13.7-9","details":"RabbitMQ is a messaging and streaming broker. From 4.0.0 until 4.0.22 and 4.1.14 and 4.2.7 and 4.3.1, Atom exhaustion: toatom on global-parameter :name. resourceexists/2 (and the PUT/DELETE handlers) call rabbitdatacoercion:toatom/1 on the :name URL path segment. toatom/1 uses binarytoatom/2 (unsafe). The endpoint requires policymaker (not management, but below A user with the policymaker tag can crash the node by exhausting the atom table via repeated requests to /api/global-parameters/:name with unique :name Management plugin enabled policymaker tag ~1M HTTP. This issue is fixed in versions 4.0.22 and 4.1.14 and 4.2.7 and 4.3.1.","modified":"2026-10-01T14:15:10.816680073Z","published":"2026-09-25T17:17:11Z","upstream":["CVE-2026-67227"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-67227"}],"affected":[{"package":{"name":"rabbitmq-server","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/rabbitmq-server"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"3.13.7-9"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-105293.json"}}],"schema_version":"1.9.0"}