Resource exhaustion in RabbitMQ Server - #VU137290
Published: July 10, 2026
Vulnerability identifier: #VU137290
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-400
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 uncontrolled resource consumption in the rabbitmq stream reader when processing client-supplied chunk_selector properties in post-auth subscribe and resolve_offset_spec frames. A remote user can repeatedly send crafted stream protocol frames with fresh chunk_selector values to cause a denial of service.
Only instances with the rabbitmq_stream plugin enabled are vulnerable.
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, 4.3.1