Resource exhaustion in RabbitMQ Server - #VU143934
Published: August 18, 2026
Vulnerability identifier: #VU143934
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper resource management in the rabbitmq_web_stomp STOMP parser when processing compressed pre-authentication WebSocket STOMP messages. A remote attacker can send many highly compressible incomplete STOMP messages with a large declared content-length to cause a denial of service.
Exploitation requires the Web STOMP plugin to be enabled, a reachable Web STOMP listener, and negotiated permessage-deflate compression.
Affected software
RabbitMQ Server
Remediation
Install security update from vendor's website.
RabbitMQ Server - addressed in versions 4.2.10, 4.3.5