CVE-2026-41727
Severity CVSS v4.0:
Pending analysis
Type:
CWE-20
Input Validation
Publication date:
10/06/2026
Last modified:
10/06/2026
Description
Spring Kafka&#39;s retry topic infrastructure did not sufficiently validate user-controlled header values before acting on them. A producer could send a record with a crafted retry_topic-attempts header to supply an out-of-range attempt count and cause the retry topic router to misidentify where the message was in the retry sequence.<br />
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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
Base Score 3.x
6.50
Severity 3.x
MEDIUM