rabbitmq-server — security advisory
RabbitMQ is a messaging and streaming broker. From 4.2.0 until 4.2.8 and 4.3.2, set_token_auth/2 inserted a bearer token from the Authorization header or access_token cookie into OAuth bootstrap JavaScript without escaping, allowing attacker-controlled token content to execute JavaScript in the management UI origin. The endpoint is exposed before authentication only when management.oauth_enabled is true, and exploitation through the cookie path additionally requires the attacker to plant an access_token cookie on the management host. This issue is fixed in versions 4.2.8 and 4.3.2.
- 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
- Fixed versions
- 4.3.2-1
- CVEs
- CVE-2026-67237
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 02:15 UTC · Revision 1
Source evidence
RabbitMQ is a messaging and streaming broker. From 4.2.0 until 4.2.8 and 4.3.2, set_token_auth/2 inserted a bearer token from the Authorization header or access_token cookie into OAuth bootstrap JavaScript without escaping, allowing attacker-controlled token content to execute JavaScript in the management UI origin. The endpoint is exposed before authentication only when management.oauth_enabled is true, and exploitation through the cookie path additionally requires the attacker to plant an access_token cookie on the management host. This issue is fixed in versions 4.2.8 and 4.3.2.
osv:DEBIAN-CVE-2026-67237
rabbitmq-server
Fixed versions: 4.3.2-1
Complete source record
{
"id": "759ad42fec439fadb46b6ddf4a3af622b9e304c9c78d159a859709e0ccc7548d",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-67237",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2026-67237",
"summary": "RabbitMQ is a messaging and streaming broker. From 4.2.0 until 4.2.8 and 4.3.2, set_token_auth/2 inserted a bearer token from the Authorization header or access_token cookie into OAuth bootstrap JavaScript without escaping, allowing attacker-controlled token content to execute JavaScript in the management UI origin. The endpoint is exposed before authentication only when management.oauth_enabled is true, and exploitation through the cookie path additionally requires the attacker to plant an access_token cookie on the management host. This issue is fixed in versions 4.2.8 and 4.3.2.",
"evidence": "osv:DEBIAN-CVE-2026-67237",
"products": [
{
"name": {
"value": "rabbitmq-server",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.3.2-1",
"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"
}
]
}
],
"severity": "critical",
"structured": {
"id": "DEBIAN-CVE-2026-67237",
"aliases": [
"DEBIAN-CVE-2026-67237"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"
}
],
"affected": [
{
"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-2026-67237.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T18:05:41.241477800Z",
"provider": "osv",
"upstream": [
"CVE-2026-67237"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2026-67237"
]
},
"related_cves": [
{
"value": "CVE-2026-67237",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 424532,
"published_at": "2026-09-25T17:17:11.883+00:00"
}