CVE-2026-41726
Last modified
CVE-2026-41726 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 0.30% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Vmware | Spring For Apache Kafka | < 2.8.12 |
| Vmware | Spring For Apache Kafka | >= 2.9.0, < 2.9.14 |
| Vmware | Spring For Apache Kafka | >= 3.2.0, < 3.2.14 |
| Vmware | Spring For Apache Kafka | >= 3.3.0, < 3.3.15.1 |
| Vmware | Spring For Apache Kafka | >= 4.0.0, < 4.0.5.1 |
References
- https://spring.io/security/cve-2026-41726Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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