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Vulnerabilities

CVE-2026-41731 | BDVDB-2026-338955 Detail

SpringSpring for Apache Kafka

Description#

JsonKafkaHeaderMapper and the deprecated DefaultKafkaHeaderMapper matched type headers against trusted packages using a prefix check, meaning that trusting any package implicitly trusted all of its subpackages. Combined with Jackson's default bean deserialization, a producer could supply crafted header values that caused the consumer to deserialize arbitrary JDK types. 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.

Impact#

A producer can supply crafted Kafka header values that cause the consumer to deserialize arbitrary JDK types via overly broad trusted-package prefix matching in JsonKafkaHeaderMapper.

Weaknesses#

  • CWE-502 Deserialization of Untrusted Data

References#

Exploit#

No public exploit known

History#

  1. Version 1Record published in the CVE List.
  2. Version 2Most recent update recorded in the CVE List.