Bug 2487380 (CVE-2026-41726) - CVE-2026-41726 spring-kafka: Spring-kafka: Denial of Service due to unbounded heap growth via unique header values
Summary: CVE-2026-41726 spring-kafka: Spring-kafka: Denial of Service due to unbounded...
Keywords:
Status: NEW
Alias: CVE-2026-41726
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-10 00:02 UTC by OSIDB Bzimport
Modified: 2026-06-11 10:43 UTC (History)
21 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-06-10 00:02:00 UTC 
When an application opts into DelegatingDeserializer, a producer can grow the consumer's heap without bound by sending records with unique random spring.kafka.serialization.selector header values, eventually causing GC thrash and OutOfMemoryError.

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.
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