CVE-2026-57219

Description

RabbitMQ is a messaging and streaming broker. Prior to 3.13.15, 4.0.20, 4.1.11, and 4.2.6, the obsolete GET /api/auth endpoint can disclose the OAuth 2 client secret on RabbitMQ installations configured with management.oauth_client_secret, exposing credentials to unauthenticated callers when the management plugin and that OAuth configuration are enabled. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.

References

• https://github.com/rabbitmq/rabbitmq-server/commit/98b1daf740237c85941e8addcbea6e74f4a2743c
• https://github.com/rabbitmq/rabbitmq-server/commit/aa387c4451e7b674df3e3ba89df86a99d697cc7f
• https://github.com/rabbitmq/rabbitmq-server/pull/16083
• https://github.com/rabbitmq/rabbitmq-server/pull/16086
• https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6
• https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-pj24-8j6m-vq9q