rabbitmq-server — security advisory
RabbitMQ is a messaging and streaming broker. From 4.2.0 until 4.2.9 and 4.3.3, the Shovel parameter parser converted attacker-controlled runtime parameter values into non-garbage-collected Erlang atoms before bounding them or checking a fixed allowlist. Exploitation requires network access to the Management HTTP API, valid credentials with both the management and policymaker tags, permission to set Shovel runtime parameters on a vhost, and the rabbitmq_shovel and rabbitmq_shovel_management plugins to be enabled. The attacker can exhaust the node-wide atom table and deny service, and malicious parameters are stored durably and reparsed when workers start, so atom pressure can recur after restart without a live attacker connection. This issue is fixed in versions 4.2.9 and 4.3.3.
- Products
- rabbitmq-server
- Affected versions
- 4.0.5-10, 4.0.5-11, 4.0.5-12, 4.0.5-13, 4.0.5-14, 4.0.5-6, 4.0.5-8, 4.0.5-9, 4.3.0-1, 4.3.0-2, 4.3.0-3, 4.3.2-1, 4.3.2-2, 4.3.2-3, 4.3.2-4, 4.3.2-5
- Fixed versions
- 4.3.6-1
- CVEs
- CVE-2026-67415
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 02:16 UTC · Revision 1
Source evidence
RabbitMQ is a messaging and streaming broker. From 4.2.0 until 4.2.9 and 4.3.3, the Shovel parameter parser converted attacker-controlled runtime parameter values into non-garbage-collected Erlang atoms before bounding them or checking a fixed allowlist. Exploitation requires network access to the Management HTTP API, valid credentials with both the management and policymaker tags, permission to set Shovel runtime parameters on a vhost, and the rabbitmq_shovel and rabbitmq_shovel_management plugins to be enabled. The attacker can exhaust the node-wide atom table and deny service, and malicious parameters are stored durably and reparsed when workers start, so atom pressure can recur after restart without a live attacker connection. This issue is fixed in versions 4.2.9 and 4.3.3.
osv:DEBIAN-CVE-2026-67415
rabbitmq-server
Fixed versions: 4.3.6-1
Complete source record
{
"id": "0c31617b398999ba38a0e6e7c4e9fcf32994f28db549ae4551959a1a854e0157",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-67415",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2026-67415",
"summary": "RabbitMQ is a messaging and streaming broker. From 4.2.0 until 4.2.9 and 4.3.3, the Shovel parameter parser converted attacker-controlled runtime parameter values into non-garbage-collected Erlang atoms before bounding them or checking a fixed allowlist. Exploitation requires network access to the Management HTTP API, valid credentials with both the management and policymaker tags, permission to set Shovel runtime parameters on a vhost, and the rabbitmq_shovel and rabbitmq_shovel_management plugins to be enabled. The attacker can exhaust the node-wide atom table and deny service, and malicious parameters are stored durably and reparsed when workers start, so atom pressure can recur after restart without a live attacker connection. This issue is fixed in versions 4.2.9 and 4.3.3.",
"evidence": "osv:DEBIAN-CVE-2026-67415",
"products": [
{
"name": {
"value": "rabbitmq-server",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.3.6-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": [
{
"value": "4.0.5-10",
"evidence": "/affected/0/versions"
},
{
"value": "4.0.5-11",
"evidence": "/affected/0/versions"
},
{
"value": "4.0.5-12",
"evidence": "/affected/0/versions"
},
{
"value": "4.0.5-13",
"evidence": "/affected/0/versions"
},
{
"value": "4.0.5-14",
"evidence": "/affected/0/versions"
},
{
"value": "4.0.5-6",
"evidence": "/affected/0/versions"
},
{
"value": "4.0.5-8",
"evidence": "/affected/0/versions"
},
{
"value": "4.0.5-9",
"evidence": "/affected/0/versions"
},
{
"value": "4.3.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.3.0-2",
"evidence": "/affected/0/versions"
},
{
"value": "4.3.0-3",
"evidence": "/affected/0/versions"
},
{
"value": "4.3.2-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.3.2-2",
"evidence": "/affected/0/versions"
},
{
"value": "4.3.2-3",
"evidence": "/affected/0/versions"
},
{
"value": "4.3.2-4",
"evidence": "/affected/0/versions"
},
{
"value": "4.3.2-5",
"evidence": "/affected/0/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2026-67415",
"aliases": [
"DEBIAN-CVE-2026-67415"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.3.6-1"
}
]
}
],
"package": {
"name": "rabbitmq-server",
"purl": "pkg:deb/debian/rabbitmq-server?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"4.0.5-10",
"4.0.5-11",
"4.0.5-12",
"4.0.5-13",
"4.0.5-14",
"4.0.5-6",
"4.0.5-8",
"4.0.5-9",
"4.3.0-1",
"4.3.0-2",
"4.3.0-3",
"4.3.2-1",
"4.3.2-2",
"4.3.2-3",
"4.3.2-4",
"4.3.2-5"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-67415.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T18:05:41.402882755Z",
"provider": "osv",
"upstream": [
"CVE-2026-67415"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2026-67415"
]
},
"related_cves": [
{
"value": "CVE-2026-67415",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 424543,
"published_at": "2026-09-25T17:17:13.69+00:00"
}