{"cve":{"cve_id":"CVE-2026-41731","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.0034,"epss_percentile":0.25713,"epss_as_of":"2026-06-23","description":"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.","published_at":"2026-06-09T23:49:26.535000Z","last_modified_at":null,"cvss_v3_score":8.1,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","cvss_v3_severity":"HIGH","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-502"],"nvd_references":["https://spring.io/security/cve-2026-41731"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:30:17.617015Z"},"effective_severity":"HIGH","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"H","value_label":"High"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"spring","vendor_name":"Spring","product_slug":"spring-for-apache-kafka","product_name":"Spring for Apache Kafka","version_start":"4.0.0","version_start_inclusive":true,"version_end":"4.0.5.1","version_end_inclusive":false,"cpe23_uri":"cve5:spring:spring-for-apache-kafka:4.0.0:4.0.5.1"},{"vendor_slug":"spring","vendor_name":"Spring","product_slug":"spring-for-apache-kafka","product_name":"Spring for Apache Kafka","version_start":"3.3.0","version_start_inclusive":true,"version_end":"3.3.15.1","version_end_inclusive":false,"cpe23_uri":"cve5:spring:spring-for-apache-kafka:3.3.0:3.3.15.1"},{"vendor_slug":"spring","vendor_name":"Spring","product_slug":"spring-for-apache-kafka","product_name":"Spring for Apache Kafka","version_start":"3.2.0","version_start_inclusive":true,"version_end":"3.2.14","version_end_inclusive":false,"cpe23_uri":"cve5:spring:spring-for-apache-kafka:3.2.0:3.2.14"},{"vendor_slug":"spring","vendor_name":"Spring","product_slug":"spring-for-apache-kafka","product_name":"Spring for Apache Kafka","version_start":"2.9.0","version_start_inclusive":true,"version_end":"2.9.14","version_end_inclusive":false,"cpe23_uri":"cve5:spring:spring-for-apache-kafka:2.9.0:2.9.14"},{"vendor_slug":"spring","vendor_name":"Spring","product_slug":"spring-for-apache-kafka","product_name":"Spring for Apache Kafka","version_start":"2.8.0","version_start_inclusive":true,"version_end":"2.8.12","version_end_inclusive":false,"cpe23_uri":"cve5:spring:spring-for-apache-kafka:2.8.0:2.8.12"}],"exploit_refs":[],"news":[],"references":[{"url":"https://spring.io/security/cve-2026-41731","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-06-09T23:49:26.535000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:54:07.258310Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:54:07.258310Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:54:07.258310Z","label":"CVSS score revised","source":"cvelistv5"}]}