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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.006 (48.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 48.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
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
- github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-7v84-m3g5-vxq6 (Exploit, Vendor Advisory)
- github.com/rabbitmq/rabbitmq-server/pull/15803 (Patch, Issue Tracking)
- github.com/rabbitmq/rabbitmq-server/commit/39c3a8e9c71da0403d8dfc13f700e60c936e… (Patch)
- github.com/rabbitmq/rabbitmq-server/commit/6730797f6a34b4e8308cea60adf1243857e7… (Patch)
- github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6 (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.