High severity7.5NVD Advisory· Published Sep 25, 2026· Updated Oct 20, 2026
CVE-2026-67230
CVE-2026-67230
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3- Range: 3.13.0 - 3.13.14, 4.0.0 - 4.0.19, 4.1.0 - 4.1.10, 4.2.0 - 4.2.5
- cpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:*Range: >=3.13.0,<3.13.15
Patches
Vulnerability mechanics
References
5- github.com/rabbitmq/rabbitmq-server/commit/0b4080fa5d6f797b6331d0ce1db2b4bacd34560envdPatch
- github.com/rabbitmq/rabbitmq-server/commit/8138edae6d2beaafe699a41a754d17420bdc2068nvdPatch
- github.com/rabbitmq/rabbitmq-server/commit/c1000ba89052608c01c052d98016403ba6e92222nvdPatch
- github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6nvdRelease NotesPatch
- github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-7v63-j4gm-p4rhnvdVendor Advisory
News mentions
1- RabbitMQ: 25 Vulnerabilities Disclosed Together, Highlighting Auth, UI, and DoS RisksVypr Intelligence · Sep 25, 2026