CVE-2026-67225

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.15, 4.0.20, 4.1.11, and 4.2.6, the stream protocol stored the FrameMax value negotiated during the Tune handshake but did not compare it with an inbound frame's declared length before buffering the frame. With the stream plugin enabled, a remote client could therefore cause excessive memory pressure and denial of service by declaring an oversized frame. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6	Release Notes Patch
https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-c8c4-gvv4-8j3q	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:broadcom:rabbitmq_server::::::::
	cpe:2.3:a:broadcom:rabbitmq_server::::::::
	cpe:2.3:a:broadcom:rabbitmq_server::::::::
	cpe:2.3:a:broadcom:rabbitmq_server::::::::

History

20 Oct 2026, 13:37

Type	Values Removed	Values Added
First Time		Broadcom rabbitmq Server Broadcom
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5
References	~~() https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6 -~~	() https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6 - Release Notes, Patch
References	~~() https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-c8c4-gvv4-8j3q -~~	() https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-c8c4-gvv4-8j3q - Vendor Advisory
CPE		cpe:2.3:a:broadcom:rabbitmq_server::::::::

25 Sep 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-25 17:17

Updated : 2026-10-20 13:37

NVD link : CVE-2026-67225

Mitre link : CVE-2026-67225

CVE.ORG link : CVE-2026-67225

JSON object : View

Products Affected

broadcom

rabbitmq_server

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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