CVE-2026-41727

Summary

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.

Affected Software

VendorProductVersion RangeStatus
SpringSpring for Apache Kafka4.0.0 < 4.0.5.1affected
SpringSpring for Apache Kafka3.3.0 < 3.3.15.1affected
SpringSpring for Apache Kafka3.2.0 < 3.2.14affected
SpringSpring for Apache Kafka2.9.0 < 2.9.14affected
SpringSpring for Apache Kafka2.8.0 < 2.8.12affected

Weaknesses

  • CWE-20: CWE-20: Improper Input Validation

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References