Bug 2499207 (CVE-2026-57219)

Summary:	CVE-2026-57219 RabbitMQ: RabbitMQ: OAuth 2 client secret disclosure via obsolete API endpoint
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	eglynn, jjoyce, jpretori, jschluet, lhh, mburns, mgarciac
Target Milestone:	---	Keywords:	Security
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Hardware:	All
OS:	Linux
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Doc Text:	A flaw was found in RabbitMQ, a messaging and streaming broker. An unauthenticated remote attacker could exploit an obsolete API endpoint (GET /api/auth) to disclose the OAuth 2 client secret. This vulnerability occurs when the RabbitMQ management plugin and OAuth configuration are enabled, leading to unauthorized access to sensitive credentials.	Story Points:	---
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Regression:	---	Mount Type:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2507941
Bug Blocks:

Description OSIDB Bzimport 2026-07-10 21:01:33 UTC

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.