Medium severity6.5NVD Advisory· Published Jul 10, 2026· Updated Jul 13, 2026
CVE-2026-57211
CVE-2026-57211
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.
Affected products
3- cpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:*Range: >=4.1.0,<4.2.6
- Range: <4.1.11, <4.2.6
- Range: <4.1.11, <4.2.6
Patches
Vulnerability mechanics
References
5- github.com/rabbitmq/rabbitmq-server/commit/39c3a8e9c71da0403d8dfc13f700e60c936e3682nvdPatch
- github.com/rabbitmq/rabbitmq-server/commit/6730797f6a34b4e8308cea60adf1243857e70204nvdPatch
- github.com/rabbitmq/rabbitmq-server/pull/15803nvdIssue TrackingPatch
- github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-7v84-m3g5-vxq6nvdExploitVendor Advisory
- github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6nvdRelease Notes
News mentions
1- RabbitMQ: Nine Vulnerabilities Disclosed Together, Threatening Authentication and Data IntegrityVypr Intelligence · Jul 18, 2026