CVE-2026-41727Medium· 6.5▾ SunlitSpring 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 coun…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 35.8 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 17.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.2%
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.
spring_for_apache_kafka >= 2.8.0, < 2.8.12spring_for_apache_kafka >= 2.9.0, < 2.9.14spring_for_apache_kafka >= 3.2.0, < 3.2.14spring_for_apache_kafka >= 3.3.0, < 3.3.15.1spring_for_apache_kafka >= 4.0.0, < 4.0.5.1Upgrade past the affected range:
spring_for_apache_kafka 4.0.5.1Connected by shared product, vendor, weakness, or advisory.
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