2.3Baja
CVE-2026-67234RabbitMQ: Non-RFC-conformant cookie name when clearing the auth-mechanism preference
Descripción
RabbitMQ is a messaging and streaming broker. From 4.2.0 until 4.2.8 and 4.3.2, get_auth_mechanism/1 used term_to_binary/1 on the strict_auth_mechanism or preferred_auth_mechanism atom when clearing the corresponding cookie, producing a non-ASCII cookie name that violates RFC 6265 and can prevent the browser from deleting the preference. The issue is not directly exploitable for code execution or data exfiltration; its security relevance is limited to stale authentication-mechanism preferences persisting across logout and login cycles. This issue is fixed in versions 4.2.8 and 4.3.2.
Debilidad (CWE):
CWE-20
Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.
Productos y versiones afectados
| Fabricante | Producto | Versiones | |
|---|---|---|---|
| broadcom | rabbitmq server | 4.2.0 – < 4.2.8 | |
| rabbitmq | rabbitmq-server | >= 4.2.0, < 4.2.8, >= 4.3.0, < 4.3.2 |
Referencias y parches
- https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-q286-p3m9-j69f Vendor Advisory
- https://github.com/rabbitmq/rabbitmq-server/commit/149cb59d618cefa83c6deb02dbbb1e8a7a2bc968 Patch
- https://github.com/rabbitmq/rabbitmq-server/commit/baac0aaf170efeb4f124ee36b8417274fa8dcc1a Patch
- https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.8 Release NotesPatch
- https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.3.2 Release NotesPatch
Coincidencias CPE (NVD) (2)
cpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:*≥ 4.2.0 < 4.2.8cpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:*≥ 4.3.0 < 4.3.2