Allocation of Resources Without Limits or Throttling in RabbitMQ Server - #VU137258
Published: July 9, 2026
Vulnerability identifier: #VU137258
CSH Severity: Low
CVSS v4 BT: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: N/A
CWE-ID: CWE-770
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to cause a denial of service.
The vulnerability exists due to allocation of resources without limits or throttling in the AMQP 0-9-1 body assembly logic when processing published message body fragments after a crafted content-header declares an excessive BodySize. A remote user can send a specially crafted sequence of AMQP 0-9-1 publish frames to cause a denial of service.
Exploitation requires publish permission over AMQP 0-9-1.
Affected software
RabbitMQ Server
Remediation
Install security update from vendor's website.
RabbitMQ Server - addressed in versions 3.13.15, 4.0.20, 4.1.11, 4.2.6