FEDORA-2026-548235EA3B: rabbitmq-server security update

FEDORA-2026-548235EA3B, released July 30, 2026, fixes 6 CVEs in rabbitmq-server (version 4.0.9-5.fc43). None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

8.8

Base score, 0 to 10

Highest EPSS

0.0284

86th percentile

Priority of the 6 CVEs

Patch now 0
                                Urgent 0
                                High 3
                                Routine 3

Fixed package versions

Product	Release	Fixed in
rabbitmq-server	Fedora 43	4.0.9-5.fc43

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2026-57219	RabbitMQ: Unauthenticated disclosure of OAuth client credentials via an HTTP API endpoint with certain less common OAuth 2 configurations	7.5	0.0284	None reported
High	CVE-2026-57212	rabbitmq-server: RabbitMQ is a messaging and streaming broker	7.7	0.0043	None reported
High	CVE-2026-57215	RabbitMQ: Direct-reply-to binding persistence can lead to unauthorized reply-channel injection and persistent phantom	8.8	0.0038	None reported
Routine	CVE-2026-57221	rabbitmq-server: RabbitMQ is a messaging and streaming broker	5.0	0.0041	None reported
Routine	CVE-2026-57213	RabbitMQ: Stored XSS federation management plugin via unsanitized consumer_tag rendering	4.8	0.0025	None reported
Routine	CVE-2026-44839	RabbitMQ: Unsanitized vhost names allow for XSS in management UI	4.8	0.0018	None reported

Also fixes CVE-2026-57219

SUSE-SU-2026:23869-1
rabbitmq-server on sles 16.0
OPENSUSE-SU-2026:21903-1
rabbitmq-server on opensuse-leap 16.0
DEBIAN-CVE-2026-57219
rabbitmq-server on Debian 14

Vendor advisory

https://bodhi.fedoraproject.org/updates/FEDORA-2026-548235ea3b

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