Vulnerability Details CVE-2026-67230
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 Web STOMP WebSocket handler enforced neither max_frame_size nor login_timeout before authentication, allowing an unauthenticated client to keep a connection alive with a slow stream of small frames and accumulate unbounded pre-authentication state. The rabbitmq_web_stomp plugin must be enabled, and no authentication is required to reach the vulnerable path. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 39.4%
CVSS Severity
CVSS v3 Score 7.5
References
- https://github.com/rabbitmq/rabbitmq-server/commit/0b4080fa5d6f797b6331d0ce1db2b4bacd34560e
- https://github.com/rabbitmq/rabbitmq-server/commit/8138edae6d2beaafe699a41a754d17420bdc2068
- https://github.com/rabbitmq/rabbitmq-server/commit/c1000ba89052608c01c052d98016403ba6e92222
- https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6
- https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-7v63-j4gm-p4rh
Products affected by CVE-2026-67230
-
cpe:2.3:a:broadcom:rabbitmq_server:3.13.0
-
cpe:2.3:a:broadcom:rabbitmq_server:3.13.1
-
cpe:2.3:a:broadcom:rabbitmq_server:3.13.10
-
cpe:2.3:a:broadcom:rabbitmq_server:3.13.11
-
cpe:2.3:a:broadcom:rabbitmq_server:3.13.12
-
cpe:2.3:a:broadcom:rabbitmq_server:3.13.13
-
cpe:2.3:a:broadcom:rabbitmq_server:3.13.14
-
cpe:2.3:a:broadcom:rabbitmq_server:3.13.2
-
cpe:2.3:a:broadcom:rabbitmq_server:3.13.3
-
cpe:2.3:a:broadcom:rabbitmq_server:3.13.4
-
cpe:2.3:a:broadcom:rabbitmq_server:3.13.5
-
cpe:2.3:a:broadcom:rabbitmq_server:3.13.6
-
cpe:2.3:a:broadcom:rabbitmq_server:3.13.7
-
cpe:2.3:a:broadcom:rabbitmq_server:3.13.8
-
cpe:2.3:a:broadcom:rabbitmq_server:3.13.9
-
cpe:2.3:a:broadcom:rabbitmq_server:4.0.0
-
cpe:2.3:a:broadcom:rabbitmq_server:4.0.1
-
cpe:2.3:a:broadcom:rabbitmq_server:4.0.10
-
cpe:2.3:a:broadcom:rabbitmq_server:4.0.11
-
cpe:2.3:a:broadcom:rabbitmq_server:4.0.12
-
cpe:2.3:a:broadcom:rabbitmq_server:4.0.13
-
cpe:2.3:a:broadcom:rabbitmq_server:4.0.14
-
cpe:2.3:a:broadcom:rabbitmq_server:4.0.15
-
cpe:2.3:a:broadcom:rabbitmq_server:4.0.16
-
cpe:2.3:a:broadcom:rabbitmq_server:4.0.17
-
cpe:2.3:a:broadcom:rabbitmq_server:4.0.18
-
cpe:2.3:a:broadcom:rabbitmq_server:4.0.19
-
cpe:2.3:a:broadcom:rabbitmq_server:4.0.2
-
cpe:2.3:a:broadcom:rabbitmq_server:4.0.3
-
cpe:2.3:a:broadcom:rabbitmq_server:4.0.4
-
cpe:2.3:a:broadcom:rabbitmq_server:4.0.5
-
cpe:2.3:a:broadcom:rabbitmq_server:4.0.6
-
cpe:2.3:a:broadcom:rabbitmq_server:4.0.7
-
cpe:2.3:a:broadcom:rabbitmq_server:4.0.8
-
cpe:2.3:a:broadcom:rabbitmq_server:4.0.9
-
cpe:2.3:a:broadcom:rabbitmq_server:4.1.0
-
cpe:2.3:a:broadcom:rabbitmq_server:4.1.1
-
cpe:2.3:a:broadcom:rabbitmq_server:4.1.10
-
cpe:2.3:a:broadcom:rabbitmq_server:4.1.2
-
cpe:2.3:a:broadcom:rabbitmq_server:4.1.3
-
cpe:2.3:a:broadcom:rabbitmq_server:4.1.4
-
cpe:2.3:a:broadcom:rabbitmq_server:4.1.5
-
cpe:2.3:a:broadcom:rabbitmq_server:4.1.6
-
cpe:2.3:a:broadcom:rabbitmq_server:4.1.7
-
cpe:2.3:a:broadcom:rabbitmq_server:4.1.8
-
cpe:2.3:a:broadcom:rabbitmq_server:4.1.9
-
cpe:2.3:a:broadcom:rabbitmq_server:4.2.0
-
cpe:2.3:a:broadcom:rabbitmq_server:4.2.1
-
cpe:2.3:a:broadcom:rabbitmq_server:4.2.2
-
cpe:2.3:a:broadcom:rabbitmq_server:4.2.3
-
cpe:2.3:a:broadcom:rabbitmq_server:4.2.4
-
cpe:2.3:a:broadcom:rabbitmq_server:4.2.5