GitHub Advisoryadvisory · Maven
GHSA-xvfq-4q6q-gxx7 In Spring for Apache Kafka, unbounded delegate cache keyed on user-controlled, potentially malicious selector header
MEDIUM
Official page ↗
- Aliases
- CVE-2026-41726
- Ecosystem
- Maven
- Packages
- org.springframework.kafka:spring-kafka
- Severity
- Moderate
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-770
- Reviewed
- 2026-06-12
Affected packages
• Maven org.springframework.kafka:spring-kafka: >= 4.0.0, < 4.0.6 → fixed in 4.0.6
• Maven org.springframework.kafka:spring-kafka: >= 3.3.0, < 3.3.16 → fixed in 3.3.16
• Maven org.springframework.kafka:spring-kafka: >= 3.2.0, <= 3.2.13 (no fix yet)
• Maven org.springframework.kafka:spring-kafka: >= 2.9.0, <= 2.9.13 (no fix yet)
• Maven org.springframework.kafka:spring-kafka: <= 2.8.11 (no fix yet)
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.
Related
Alias · CVE (1)
- CVE-2026-41726 When an application opts into DelegatingDeserializer, a producer can grow the consumer's heap without bound by sending records with unique… vulnerability
Weakness · CWE (1)
- CWE-770 Allocation of Resources Without Limits or Throttling weakness
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-41726 advisory
- https://github.com/spring-projects/spring-kafka/issues/4489 web
- https://github.com/spring-projects/spring-kafka/commit/ca2337ba789c5778a10197bda17a62915247ff6c web
- https://github.com/spring-projects/spring-kafka package
- https://spring.io/security/cve-2026-41726 web