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Spring Spring for Apache KafkaIn Spring for Apache Kafka, missing header validation in DeadLetterPublishingRecovererFactory enables denial of service via a poison-pill loop

Risk 38
Severity
6.5
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

DeadLetterPublishingRecovererFactory reads the retrytopic-original-timestamp header from an inbound ConsumerRecord and passes its raw bytes directly to new BigInteger(header.value()) with no length or format validation. Spring for Apache Kafka 4.1.0 Spring for Apache Kafka 4.0.0 - 4.0.6 Spring for Apache Kafka 3.0.0 - 3.3.16 Spring for Apache Kafka 2.9.0 - 2.9.14 Spring for Apache Kafka 2.8.12 and earlier

First published (updated )
CVE-2026-59317

Spring Spring for Apache KafkaIn Spring for Apache Kafka, SSRF via DNS resolution triggered by untrusted java.net types in header mapper default trusted packages

Risk 40
Severity
6.5
SSRF
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

JsonKafkaHeaderMapper and DefaultKafkaHeaderMapper include java.net in their default trusted packages list. When these mappers are used — which is the default configuration for all @KafkaListener consumers — an external Kafka producer can inject a java.net.InetAddress type via the springjsonheadertypes message header. Spring for Apache Kafka 4.1.0 Spring for Apache Kafka 4.0.0 - 4.0.6 Spring for Apache Kafka 3.0.0 - 3.3.16 Spring for Apache Kafka 2.9.0 - 2.9.14 Spring for Apache Kafka 2.8.12 and earlier

First published (updated )
CVE-2026-59278

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