DEBIAN-CVE-2026-67228
RabbitMQ is a messaging and streaming broker. Prior to versions 4.2.7 and 4.3.1, The runtime-parameters lookup path coerces the URL :component segment to an atom with rabbit_data_coercion:to_atom/1 in lookup_component/1 (deps/rabbit/src/rabbit_runtime_parameters.erl), creating a new atom for any previously unseen value. A safe helper, rabbit_registry:binary_to_type/1, which uses binary_to_existing_atom with a catch, already exists but is not used at this call site. lookup_component/1 calls rabbit_data_coercion:to_atom(Component) on the :component segment of the request URL, converting an attacker-supplied string into a new atom. Because the Erlang atom table is bounded and atoms are never garbage collected, an authorized policymaker issuing roughly one million requests with distinct component values can exhaust the atom table and crash the node, resulting in a denial of service. Preconditions include Exploitation requires policymaker privileges and roughly one million requests.. This issue is fixed in versions 4.2.7 and 4.3.1.
DEBIAN-CVE-2026-67228
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-67228
rabbitmq-server
Source reference: /affected/0/package/name
- Affected versions
- 4.0.5-10
Source reference:
/affected/0/versions4.0.5-11Source reference:
/affected/0/versions4.0.5-12Source reference:
/affected/0/versions4.0.5-13Source reference:
/affected/0/versions4.0.5-14Source reference:
/affected/0/versions4.0.5-6Source reference:
/affected/0/versions4.0.5-8Source reference:
/affected/0/versions4.0.5-9Source reference:
/affected/0/versions4.3.0-1Source reference:
/affected/0/versions4.3.0-2Source reference:
/affected/0/versions4.3.0-3Source reference:
/affected/0/versions - Fixed versions
- 4.3.2-1
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.3.2-1"
}
]
}
],
"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"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-67228.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #25812 · Revision 1
- Added to Heist Feed
- Publisher date