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Description

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.

PUBLISHED Reserved 2026-06-24 | Published 2026-07-10 | Updated 2026-07-13 | Assigner GitHub_M




MEDIUM: 6.5CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N

Problem types

CWE-36: Absolute Path Traversal

CWE-918: Server-Side Request Forgery (SSRF)

Product status

>= 4.2.0, < 4.2.6
affected

>= 4.1.0, < 4.1.11
affected

References

github.com/...server/security/advisories/GHSA-7v84-m3g5-vxq6 exploit

github.com/...server/security/advisories/GHSA-7v84-m3g5-vxq6

github.com/rabbitmq/rabbitmq-server/pull/15803

github.com/...ommit/39c3a8e9c71da0403d8dfc13f700e60c936e3682

github.com/...ommit/6730797f6a34b4e8308cea60adf1243857e70204

github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6

cve.org (CVE-2026-57211)

nvd.nist.gov (CVE-2026-57211)

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