Input validation error in RabbitMQ Java Client Library - #VU137275
Published: July 9, 2026
Vulnerability identifier: #VU137275
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: VMware, Inc
Affected software:
RabbitMQ Java Client Library
RabbitMQ Java Client Library
Detailed vulnerability description
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper input validation in the socket inbound frame reader when processing broker-supplied AMQP frames during connection setup. A remote attacker can send a specially crafted frame larger than the negotiated frame_max to cause a denial of service.
The issue is reachable when the client connects to a malicious or compromised AMQP broker and uses a smaller negotiated frame_max than the inbound body-size limit.
Remediation
Install security update from vendor's website.