CVE-2026-41726 Details
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.
A vulnerability exists in Spring for Apache Kafka versions 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, and 2.8.0 through 2.8.11. When an application uses DelegatingDeserializer, a producer can send records with unique random spring.kafka.serialization.selector header values that overload the consumer's heap. This unbounded growth can cause garbage collection thrashing and an OutOfMemoryError. Only deployments that have explicitly configured DelegatingDeserializer are affected.
Users of affected versions should upgrade to the fixed version. The upgrade versions are: 4.0.x to 4.0.6, 3.3.x to 3.3.16, 3.2.x to 3.2.14, 2.9.x to 2.9.14, and 2.8.x to 2.8.12.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jun 10, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://spring.io/security/cve-2026-41726 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-770 | Allocation of Resources Without Limits or Throttling | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| vmware spring for apache kafka | < 2.8.12 >= 2.9.0, < 2.9.14 >= 3.2.0, < 3.2.14 >= 3.3.0, < 3.3.15.1 >= 4.0.0, < 4.0.5.1 |
CPE
Remediation
| |
Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 23, 2026 | CVE Translated | [email protected] |
| Jul 17, 2026 | Initial Analysis | [email protected] |
| Jun 27, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 10, 2026 | New CVE Received | [email protected] |