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CVE-2026-57219RabbitMQ: Unauthenticated disclosure of OAuth client credentials via an HTTP API endpoint with certain less common OAuth 2 configurations
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.
8.7 HIGHEPSS 2.83%Not in KEVNVD: Analyzed
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 8.7 | HIGH | 4.0GitHub_M (CNA) | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N |
| 7.5 | HIGH | 3.1NVD | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Details
- CVE ID
- CVE-2026-57219
- Status
- Analyzed
- Assigner (CNA)
- GitHub_M
- Published
- Jul 10, 2026
- Last modified
- 2026-10-25 15:10 UTC
Affected Products
As published by the CNA in the CVE record.
rabbitmqrabbitmq-server4 version ranges
- >= 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/commit/98b1daf740237c85941e8addcbea6e74f4a2743c
- github.com https://github.com/rabbitmq/rabbitmq-server/commit/aa387c4451e7b674df3e3ba89df86a99d697cc7f
- 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/releases/tag/v4.2.6
- github.com https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-pj24-8j6m-vq9q