{
"id": "GHSA-xq69-5h5v-x9x4",
"aliases": [
"CVE-2026-41731"
],
"details": "JsonKafkaHeaderMapper and the deprecated DefaultKafkaHeaderMapper matched type headers against trusted packages using a prefix check, meaning that trusting any package implicitly trusted all of its subpackages. Combined with Jackson's default bean deserialization, a producer could supply crafted header values that caused the consumer to deserialize arbitrary JDK types.\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": "In Spring for Apache Kafka, overly broad trusted-package matching in header mappers exposes JDK classes to deserialization",
"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": "2026-06-12T21:51:09Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"published": "2026-06-10T00:31:52Z",
"references": [
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41731",
"type": "ADVISORY"
},
{
"url": "https://github.com/spring-projects/spring-kafka",
"type": "PACKAGE"
},
{
"url": "https://spring.io/security/cve-2026-41731",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"severity": "HIGH",
"github_reviewed": true,
"nvd_published_at": "2026-06-10T00:16:52Z",
"github_reviewed_at": "2026-06-12T21:51:09Z"
}
}