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.
Published:Sep 25, 2026
Last Modified:Oct 20, 2026
EPS:Sep 25, 2026
EPSS Score:0.00324
CVSS Score:7.5
Affected Products
Vendor
Product
Action
Vendor
Broadcom
Product
Rabbitmq Server
Broadcom
Rabbitmq Server
Vendor
Rabbitmq
Product
Rabbitmq-server
Rabbitmq
Rabbitmq-server
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Related CVEs
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
