CVE-2026-41727
MEDIUMIn Spring for Apache Kafka, forged retry topic headers subvert retry routing and backoff behavior
Title source: cnaDescription
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.
References (1)
Core 1
Core References
Scores
CVSS v3
6.5
EPSS
0.0024
EPSS Percentile
14.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-20
Status
published
Products (5)
Spring/Spring for Apache Kafka
2.8.0 - 2.8.12
Spring/Spring for Apache Kafka
2.9.0 - 2.9.14
Spring/Spring for Apache Kafka
3.2.0 - 3.2.14
Spring/Spring for Apache Kafka
3.3.0 - 3.3.16
Spring/Spring for Apache Kafka
4.0.0 - 4.0.6
Published
Jun 10, 2026
Tracked Since
Jun 10, 2026