Kafka

Hi Manikumar, The CVE seems to be still reserved and not published yet. Best, On Tue, Apr 7, 2026 at 1:49 PM Manikumar <manikumar@apache.org> wrote: > Severity: moderate > > Affected versions: > > - Apache Kafka Clients (org.apache.kafka:kafka-clients) 2.8.0 through 3.9.1 > - Apache Kafka Clients (org.apache.kafka:kafka-clients) 4.0.0 through 4.0.1 > - Apache Kafka Clients (org.apache.kafka:kafka-clients) 4.1.0 through 4.1.1 > > Description: > > A race condition in the Apache Kafka Java producer client’s buffer > pool management can cause messages to be silently delivered to > incorrect topics. > > When a produce batch expires due to delivery.timeout.ms while a > network request containing that batch is still in flight, the batch’s > ByteBuffer is prematurely deallocated and returned to the buffer pool. > If a subsequent producer batch—potentially destined for a different > topic—reuses this fr...

Severity: moderate Affected versions: - Apache Kafka Clients (org.apache.kafka:kafka-clients) 2.8.0 through 3.9.1 - Apache Kafka Clients (org.apache.kafka:kafka-clients) 4.0.0 through 4.0.1 - Apache Kafka Clients (org.apache.kafka:kafka-clients) 4.1.0 through 4.1.1 Description: A race condition in the Apache Kafka Java producer client’s buffer pool management can cause messages to be silently delivered to incorrect topics. When a produce batch expires due to delivery.timeout.ms while a network request containing that batch is still in flight, the batch’s ByteBuffer is prematurely deallocated and returned to the buffer pool. If a subsequent producer batch—potentially destined for a different topic—reuses this freed buffer before the original network request completes, the buffer contents may become corrupted. This can result in messages being delivered to unintended topics without any error being reported to the producer. Data Confidentiality: Messages in...