Bug 2525176 (CVE-2026-59317)

Summary:	CVE-2026-59317 org.springframework.kafka/spring-kafka: Spring for Apache Kafka: Denial of Service via missing header validation
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	gmalinko, gtanzill, janstey, jbuscemi, pdelbell, rstepani
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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Doc Text:	A flaw was found in Spring for Apache Kafka. The DeadLetterPublishingRecovererFactory component does not properly validate the retry_topic-original-timestamp header. A remote attacker can exploit this by sending a specially crafted message with a malformed header, leading to an infinite processing loop. This 'poison-pill loop' can cause a Denial of Service (DoS) condition, making the application unavailable.	Story Points:	---
Clone Of:		Environment:
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Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-08-27 20:13:14 UTC

DeadLetterPublishingRecovererFactory reads the retry_topic-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