Improper Neutralization of Equivalent Special Elements Affecting rabbitmq-server4.3 package, versions <0:4.3.2-1.hum1


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.63% (48th percentile)

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  • Snyk IDSNYK-RHEL10-RABBITMQSERVER43-18382535
  • published29 Jul 2026
  • disclosed10 Jul 2026

Introduced: 10 Jul 2026

CVE-2026-57211  (opens in a new tab)
CWE-76  (opens in a new tab)

How to fix?

Upgrade RHEL:10 rabbitmq-server4.3 to version 0:4.3.2-1.hum1 or higher.
This issue was patched in RHSA-2026:35939.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rabbitmq-server4.3 package and not the rabbitmq-server4.3 package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

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 Base Scores

version 3.1