CVE-2026-41727
Fixed upstream EPSS <1%CVSS 6.5
Spring Kafka's retry topic infrastructure did not sufficiently validate user-controlled header values before acting on them. A producer could send a record with a crafted retry_topic-attempts header to supply an out-of-range attempt count and cause the retry topic router to misidentify where the message was in the retry sequence. Affected versions: Spring for Apache Kafka 4.0.0 through 4.0.5; 3.3.0 through 3.3.15; 3.2.0 through 3.2.13; 2.9.0 through 2.9.13; 2.8.0 through 2.8.11.
Products: Spring For Apache Kafka
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| Maven | org.springframework.kafka:spring-kafka | 4.0.6 |
| Maven | org.springframework.kafka:spring-kafka | 3.3.16 |
| Maven | org.springframework.kafka:spring-kafka | no fix |