Path Traversal in Broadcom Rabbitmq Server
CVE-2026-57211
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.
EPSS: 0.006 (47.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N.
Affected products
- Broadcom Rabbitmq_server
- Microsoft Windows
- Rabbitmq Rabbitmq-server — versions >= 4.2.0, < 4.2.6, >= 4.1.0, < 4.1.11
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-57211?
- CVE-2026-57211 is a medium-severity vulnerability in Broadcom Rabbitmq Server, classified under Absolute Path Traversal. CVSS score: 6.5/10. Published 2026-07-10.
- How severe is CVE-2026-57211?
- Medium severity. CVSS v3 base score is 6.5 out of 10.