spring-projects/spring-kafka · Security
In Spring for Apache Kafka, unbounded delegate cache keyed on user-controlled, potentially malicious selector header
- GHSA ID
- GHSA-xvfq-4q6q-gxx7
- CVE ID
- CVE-2026-41726
- Severity
- medium
- Published
- Updated
- CVSS
- 6.5 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CVSS v3
- 6.5 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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.
CWEs
- CWE-770 · Allocation of Resources Without Limits or Throttling
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-41726 ↗
- https://spring.io/security/cve-2026-41726 ↗
- https://github.com/spring-projects/spring-kafka/issues/4489 ↗
- https://github.com/spring-projects/spring-kafka/commit/ca2337ba789c5778a10197bda17a62915247ff6c ↗
- https://github.com/advisories/GHSA-xvfq-4q6q-gxx7 ↗