{
"id": "GHSA-53w6-v7cv-fc9h",
"aliases": [
"CVE-2026-41727"
],
"details": "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.\n\nAffected versions:\nSpring 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.",
"summary": "Spring for Apache Kafka: Improper Validation of Retry Topic Header Values Leads to Retry Sequence Manipulation",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "4.0.0"
},
{
"fixed": "4.0.6"
}
]
}
],
"package": {
"name": "org.springframework.kafka:spring-kafka",
"ecosystem": "Maven"
},
"database_specific": {
"last_known_affected_version_range": "<= 4.0.5"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "3.3.0"
},
{
"fixed": "3.3.16"
}
]
}
],
"package": {
"name": "org.springframework.kafka:spring-kafka",
"ecosystem": "Maven"
},
"database_specific": {
"last_known_affected_version_range": "<= 3.3.15"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "3.2.0"
},
{
"last_affected": "3.2.13"
}
]
}
],
"package": {
"name": "org.springframework.kafka:spring-kafka",
"ecosystem": "Maven"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "2.9.0"
},
{
"last_affected": "2.9.13"
}
]
}
],
"package": {
"name": "org.springframework.kafka:spring-kafka",
"ecosystem": "Maven"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"last_affected": "2.8.11"
}
]
}
],
"package": {
"name": "org.springframework.kafka:spring-kafka",
"ecosystem": "Maven"
}
}
],
"modified": "2026-08-12T17:42:55Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
}
],
"published": "2026-06-10T00:31:52Z",
"references": [
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41727",
"type": "ADVISORY"
},
{
"url": "https://github.com/spring-projects/spring-kafka",
"type": "PACKAGE"
},
{
"url": "https://github.com/spring-projects/spring-kafka/releases/tag/v3.3.16",
"type": "WEB"
},
{
"url": "https://github.com/spring-projects/spring-kafka/releases/tag/v4.0.6",
"type": "WEB"
},
{
"url": "https://spring.io/security/cve-2026-41727",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-20"
],
"severity": "MODERATE",
"github_reviewed": true,
"nvd_published_at": "2026-06-10T00:16:52Z",
"github_reviewed_at": "2026-08-12T17:42:55Z"
}
}