| Package | Affected versions | Patched versions |
|---|---|---|
| rabbitmq server | ≥ 4.2.0, < 4.2.6 | 4.2.6 |
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.
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