RabbitMQ is a messaging and streaming broker. Prior to 3.13.15, 4.0.20, 4.1.11, and 4.2.6, RabbitMQ does not perform authorization checks on passive queue.declare and exchange.declare AMQP 0-9-1 operations, allowing any authenticated user who can connect to a virtual host to enumerate queue and exchange names and read queue message and consumer counts. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.
{
"cwe_ids": [
"CWE-862"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57221.json",
"cna_assigner": "GitHub_M",
"unresolved_ranges": [
{
"extracted_events": [
{
"introduced": "4.1.0"
},
{
"fixed": "4.1.11"
},
{
"introduced": "4.0.0"
},
{
"fixed": "4.0.21"
},
{
"introduced": "3.13.0"
},
{
"fixed": "3.13.15"
}
],
"source": "AFFECTED_FIELD"
}
]
}