CVE-2026-67237

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.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:*
cpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:*

History

20 Oct 2026, 12:56

Type Values Removed Values Added
CPE cpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 9.3
First Time Broadcom rabbitmq Server
Broadcom
References () https://github.com/rabbitmq/rabbitmq-server/commit/5cd6d841d84450324a4613501ed917d98828af23 - () https://github.com/rabbitmq/rabbitmq-server/commit/5cd6d841d84450324a4613501ed917d98828af23 - Patch
References () https://github.com/rabbitmq/rabbitmq-server/commit/a8041d528c1a71af4cb75ade247ed082fe6b83fb - () https://github.com/rabbitmq/rabbitmq-server/commit/a8041d528c1a71af4cb75ade247ed082fe6b83fb - Patch
References () https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.8 - () https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.8 - Release Notes, Patch
References () https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.3.2 - () https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.3.2 - Release Notes, Patch
References () https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-2rf7-f6r6-8rwh - () https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-2rf7-f6r6-8rwh - Vendor Advisory

25 Sep 2026, 17:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-09-25 17:17

Updated : 2026-10-20 12:56


NVD link : CVE-2026-67237

Mitre link : CVE-2026-67237

CVE.ORG link : CVE-2026-67237


JSON object : View

Products Affected

broadcom

  • rabbitmq_server
CWE
CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')