CVE-2026-57219
RabbitMQ: Unauthenticated disclosure of OAuth client credentials via an HTTP API endpoint with certain less common OAuth 2 configurations
CVSS Score
0.0
EPSS Score
0.4%
EPSS Percentile
28th
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.
| CWE | CWE-200 |
| Vendor | rabbitmq |
| Product | rabbitmq-server |
| Published | Jul 10, 2026 |
| Last Updated | Jul 16, 2026 |
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Affected Versions
rabbitmq / rabbitmq-server
>= 4.2.0, < 4.2.6 >= 4.1.0, < 4.1.11 >= 4.0.0, < 4.0.21 >= 3.13.0, < 3.13.15
References
github.com: https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-pj24-8j6m-vq9q github.com: https://github.com/rabbitmq/rabbitmq-server/pull/16083 github.com: https://github.com/rabbitmq/rabbitmq-server/pull/16086 github.com: https://github.com/rabbitmq/rabbitmq-server/commit/98b1daf740237c85941e8addcbea6e74f4a2743c github.com: https://github.com/rabbitmq/rabbitmq-server/commit/aa387c4451e7b674df3e3ba89df86a99d697cc7f github.com: https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6