Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2026-41726

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
10/06/2026
Last modified:
23/07/2026

Description

When an application opts into DelegatingDeserializer, a producer can grow the consumer&amp;#39;s heap without bound by sending records with unique random spring.kafka.serialization.selector header values, eventually causing GC thrash and OutOfMemoryError.<br /> <br /> Affected versions:<br /> 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.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 6.50 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
6.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:vmware:spring_for_apache_kafka:*:*:*:*:*:*:*:* 2.8.12 (excluding)
cpe:2.3:a:vmware:spring_for_apache_kafka:*:*:*:*:*:*:*:* 2.9.0 (including) 2.9.14 (excluding)
cpe:2.3:a:vmware:spring_for_apache_kafka:*:*:*:*:*:*:*:* 3.2.0 (including) 3.2.14 (excluding)
cpe:2.3:a:vmware:spring_for_apache_kafka:*:*:*:*:*:*:*:* 3.3.0 (including) 3.3.15.1 (excluding)
cpe:2.3:a:vmware:spring_for_apache_kafka:*:*:*:*:*:*:*:* 4.0.0 (including) 4.0.5.1 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools