CVE-2026-67237
RabbitMQ: Reflected XSS via the OAuth bootstrap JS endpoint
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-79 |
| Vendor | rabbitmq |
| Product | rabbitmq-server |
| Published | Sep 25, 2026 |
| Last Updated | Sep 25, 2026 |
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Affected Versions
rabbitmq / rabbitmq-server
>= 4.2.0, < 4.2.8 >= 4.3.0, < 4.3.2
References
github.com: https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-2rf7-f6r6-8rwh github.com: https://github.com/rabbitmq/rabbitmq-server/commit/5cd6d841d84450324a4613501ed917d98828af23 github.com: https://github.com/rabbitmq/rabbitmq-server/commit/a8041d528c1a71af4cb75ade247ed082fe6b83fb github.com: https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.8 github.com: https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.3.2