CVE-2026-67421: rabbitmq server from 3.13.0 (inclusive), before 3.13.9 (exclusive), from 4.0.0 (inclusive), before 4.0.24 (exclusive)…

Affected technology

rabbitmq server · from 3.13.0 (inclusive), before 3.13.9 (exclusive)
broadcom

rabbitmq server · from 4.0.0 (inclusive), before 4.0.24 (exclusive)
broadcom

rabbitmq server · from 4.1.0 (inclusive), before 4.1.15 (exclusive)
broadcom

rabbitmq server · from 4.2.0 (inclusive), before 4.2.10 (exclusive)
broadcom

rabbitmq server · from 4.3.0 (inclusive), before 4.3.5 (exclusive)
broadcom

rabbitmq-server · >= 3.13.0, < 3.13.19, >= 4.0.0, < 4.0.24, >= 4.1.0, < 4.1.15, >= 4.2.0, < 4.2.10, >= 4.3.0, < 4.3.5
rabbitmq

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · Low privileges required · Active user interaction

What an attacker can do

Vendor/CNA’s CVSS 4.0 assessment (base score 4.5/10) rates confidentiality and integrity impact as low; availability impact as none. The description does not specify what an attacker can achieve beyond these rated impacts.