CVE-2026-41726
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.
Published:Jun 9, 2026
Last Modified:Jun 10, 2026
EPS:Jun 9, 2026
EPSS Score:0.0004
CVSS Score:6.5
Affected Products
Vendor
Product
Action
Vendor
Spring
Product
Spring For Apache Kafka
Spring
Spring For Apache Kafka
Vendor
Vmware
Product
Spring For Apache Kafka
Vmware
Spring For Apache Kafka
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Related CVEs
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
