{"id":"AZL-105786","summary":"CVE-2026-66072 affecting package rabbitmq-server 3.13.7-9","details":"RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.1, get_chunk_selector/1 calls binary_to_atom on the raw client-supplied \u003c\u003c\"chunk_selector\"\u003e\u003e property from post-auth subscribe and resolve_offset_spec frames, with no whitelist and no existing guard. An authenticated stream client with read access to any stream can crash the broker node. Preconditions include rabbitmq_stream plugin enabled Authenticated stream-protocol user with read access to at least one stream. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.1.","modified":"2026-10-05T05:34:30Z","published":"2026-09-23T21:16:59Z","upstream":["CVE-2026-66072"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-66072"}],"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-105786.json"}}],"schema_version":"1.9.0"}