Kafka Streams has a vulnerability where its stream-time clock calculation can overflow when processing records with timestamps near Long.MAX_VALUE. This causes the StreamThread to stall indefinitely, making the Streams application unresponsive. The issue affects only the Streams application, not the Kafka brokers or cluster. It requires write access to a source topic using stream-time punctuation and is mitigated in Kafka Streams versions 4.2.2, 4.3.2, and 4.4.0.