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https://issues.apache.org/jira/browse/KAFKA-4493?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17118860#comment-17118860
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John Roesler commented on KAFKA-4493:
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Hi [~enether] , what's the status on this issue?
It has just recently come up in the mailing list again:
https://lists.apache.org/thread.html/rc877a994c5e46e9d00e727f22186d38deb33ef49dc161fbe13e8d3bc%40%3Cusers.kafka.apache.org%3E
> Connections to Kafka brokers should be validated
> ------------------------------------------------
>
> Key: KAFKA-4493
> URL: https://issues.apache.org/jira/browse/KAFKA-4493
> Project: Kafka
> Issue Type: Improvement
> Components: clients
> Reporter: Ismael Juma
> Assignee: Stanislav Kozlovski
> Priority: Major
>
> There have been a few reports of Kafka clients throwing an OOM because they
> read 4 bytes from the stream and then use that to allocate a ByteBuffer
> without validating that they are using the right security protocol or even
> communicating with a Kafka broker.
> It would be good to perform some validation in order to show a useful error
> message to the user instead of the OOM.
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