CVE-2026-57219

RabbitMQ: Unauthenticated disclosure of OAuth client credentials via an HTTP API endpoint with certain less common OAuth 2 configurations

CVE-2026-57219 is fixed in rabbitmq-server on 1 platform, first by DEBIAN-CVE-2026-57219, released July 18, 2026. It is not reported as exploited. Patch Radar priority: High.

High

CVSS

7.5

Important

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0284

86th percentile

Unauthenticated disclosure of OAuth client credentials via an HTTP API endpoint with certain less

Where it's fixed

Product	Fixed in	Fix	Released
Linux
rabbitmq-server · Debian 14	4.3.0-2	DEBIAN-CVE-2026-57219	Jul 18, 2026
rabbitmq-server · Fedora 43	4.0.9-5.fc43	FEDORA-2026-548235EA3B	Jul 30, 2026
rabbitmq-server · opensuse-leap 16.0	4.1.5-160000.2.1	OPENSUSE-SU-2026:21903-1	Sep 22, 2026
rabbitmq-server · sles 16.0	4.1.5-160000.2.1	SUSE-SU-2026:23869-1	Sep 22, 2026

Details

Published
July 10, 2026
Weakness
Exposure of Sensitive Information to an Unauthorized Actor
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57219

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