CVE-2026-41726
Medium
Description
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.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Vmware Spring For Apache Kafka
PublishedJun 10, 2026
First seenJun 10, 2026
Weakness typeCWE-770Allocation of resources without limits
How to fix
Update
- vmware spring_for_apache_kafka2.8.12, 2.9.14, 3.2.14, 3.3.15.1, 4.0.5.1 or later
- org.springframework.kafka:spring-kafka4.0.6, 3.3.16 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| vmware spring_for_apache_kafka | v < 2.8.12, 2.9.0 ≤ v < 2.9.14, 3.2.0 ≤ v < 3.2.14, 3.3.0 ≤ v < 3.3.15.1, 4.0.0 ≤ v < 4.0.5.1 | 2.8.12, 2.9.14, 3.2.14, 3.3.15.1, 4.0.5.1 |
| org.springframework.kafka:spring-kafkaMaven | 4.0.0 ≤ v < 4.0.6, 3.3.0 ≤ v < 3.3.16, 3.2.0 ≤ v ≤ 3.2.13, 2.9.0 ≤ v ≤ 2.9.13, v ≤ 2.8.11 | 4.0.6, 3.3.16 |
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