high7.5
CVE-2026-57220
RabbitMQ is a messaging and streaming broker.
Impact
RabbitMQ is a messaging and streaming broker. Prior to 4.2.6, the RabbitMQ stream listener does not enforce the configured stream frame-size limit while assembling frames during authentication and before Tune negotiation, allowing an unauthenticated remote client to declare oversized frame lengths and consume broker memory in rabbit_stream_core. This issue is fixed in version 4.2.6.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Broadcom | Rabbitmq Server | from 4.2.0 before 4.2.6 |
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/rabbitmq/rabbitmq-server/commit/595ec28fa1621b1f2c28124e4e0466a8ad963547
- https://github.com/rabbitmq/rabbitmq-server/commit/773a49c4921e8be990262a2d609c35916825679e
- https://github.com/rabbitmq/rabbitmq-server/pull/16171
- https://github.com/rabbitmq/rabbitmq-server/pull/16173
- https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6
- https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-f364-87q5-j35q