PT-2026-48323 · Spring · Spring For Apache Kafka

Published 2026-06-09 · Updated 2026-06-10 · CVE-2026-41727

Mitre

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Spring Kafka'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.

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.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2026-41727

Affected Products

Spring For Apache Kafka

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-41727 · Security Note
• https://spring.io/security/cve-2026-41727 · Note