Medium 6.5Published Jul 10, 2026

CVE-2026-57211RabbitMQ: UNC SSRF affecting the management UI on Windows

Updated under an hour ago (Oct 27, 2026, 1:00 AM ET)

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It affects rabbitmq-server and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for rabbitmq-server

Exploited in the last 30 days

RabbitMQ is a messaging and streaming broker. Prior to 4.1.11 and 4.2.6 on Windows, the RabbitMQ management plugin static file handler rabbit_mgmt_wm_static can pass URL-encoded backslashes to erl_prim_loader:read_file_info before path validation when multiple management extension plugins are enabled, causing outbound DNS and SMB requests to attacker-controlled UNC paths. This issue is fixed in versions 4.1.11 and 4.2.6.

CVSS: 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
Weakness (CWE): CWE-36, CWE-918
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Jul 13, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

rabbitmq rabbitmq-server rabbitmq:server (from the name)	from 4.2.0, < 4.2.6; from 4.1.0, < 4.1.11	CNA record
broadcom rabbitmq_server broadcom:rabbitmq_server	from 4.1.0 before 4.2.6	NVD

References

References

https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-7v84-m3g5-vxq6	x-refsource-confirm, exploit, vendor-advisory
https://github.com/rabbitmq/rabbitmq-server/pull/15803	x-refsource-misc, issue-tracking, patch
https://github.com/rabbitmq/rabbitmq-server/commit/39c3a8e9c71da0403d8dfc13f700e60c936e3682	x-refsource-misc, patch
https://github.com/rabbitmq/rabbitmq-server/commit/6730797f6a34b4e8308cea60adf1243857e70204	x-refsource-misc, patch
https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6	x-refsource-misc, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.