RHLW-2026-F7C61B4B79130A3C Lightwell Security Advisory: kafka-clients 3.6.2.rhlw-00004

Red Hat Lightwell has released org.apache.kafka:kafka-clients 3.6.2.rhlw-00004 with backported fixes for CVE-2024-31141, CVE-2025-27817, CVE-2026-33558, and CVE-2026-35554. CVE-2024-31141: Apache Kafka Clients: Privilege escalation to filesystem read-access via automatic ConfigProvider...

RHLW-2026-533C8DF135D5B52E Lightwell Security Advisory: kafka-clients 3.9.1.rhlw-00001

Red Hat Lightwell has released org.apache.kafka:kafka-clients 3.9.1.rhlw-00001 with backported fixes for CVE-2026-33558 and CVE-2026-35554. CVE-2026-33558: Apache Kafka, Apache Kafka Clients: Information Exposure Through Network Client Log Output CVE-2026-35554: Apache Kafka Clients: Kafka Produc...

Apache Kafka Clients: Kafka Producer Message Corruption and Misrouting via Buffer Pool Race Condition

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...

GHSA-5QCV-4RPC-JP93 Apache Kafka Clients: Kafka Producer Message Corruption and Misrouting via Buffer Pool Race Condition

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...

CVE-2026-35554

A race condition exists in the Apache Kafka Java producer client buffer pool management. When a production batch expires due to delivery.timeout.ms while a network request is still in flight, its ByteBuffer is prematurely deallocated and returned to the pool. A subsequent batch may reuse this buf...

CVE-2026-35554 Apache Kafka Clients: Kafka Producer Message Corruption and Misrouting via Buffer Pool Race Condition

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...