{"items":[{"id":"NVI-00018402","kind":"vulnerability","title":"In Spring for Apache Kafka, overly broad trusted-package matching in header mappers exposes JDK classes to deserialization","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-xq69-5h5v-x9x4","CVE-2026-41731"],"plain_summary":"GitHub lists this reviewed advisory for org.springframework.kafka:spring-kafka, org.springframework.kafka:spring-kafka, org.springframework.kafka:spring-kafka, org.springframework.kafka:spring-kafka, org.springframework.kafka:spring-kafka. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-1de52520c4d69410162179a7482510a0"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-06-12T21:51:09.000Z","value":"8.1 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-1de52520c4d69410162179a7482510a0"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-1de52520c4d69410162179a7482510a0","url":"https://github.com/advisories/GHSA-xq69-5h5v-x9x4","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-xq69-5h5v-x9x4","publisher":"GitHub Advisory Database","observed_at":"2026-11-06T15:12:54.193Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-1de52520c4d69410162179a7482510a0"],"technology":"org.springframework.kafka:spring-kafka","known_exclusions":[],"conditions_summary":"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.","public_affected_ranges":[">= 4.0.0, <= 4.0.5"]},{"certainty":"source_listed","source_ids":["sr-1de52520c4d69410162179a7482510a0"],"technology":"org.springframework.kafka:spring-kafka","known_exclusions":[],"conditions_summary":"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.","public_affected_ranges":[">= 3.3.0, <= 3.3.15"]},{"certainty":"source_listed","source_ids":["sr-1de52520c4d69410162179a7482510a0"],"technology":"org.springframework.kafka:spring-kafka","known_exclusions":[],"conditions_summary":"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.","public_affected_ranges":[">= 3.2.0, <= 3.2.13"]},{"certainty":"source_listed","source_ids":["sr-1de52520c4d69410162179a7482510a0"],"technology":"org.springframework.kafka:spring-kafka","known_exclusions":[],"conditions_summary":"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.","public_affected_ranges":[">= 2.9.0, <= 2.9.13"]},{"certainty":"source_listed","source_ids":["sr-1de52520c4d69410162179a7482510a0"],"technology":"org.springframework.kafka:spring-kafka","known_exclusions":[],"conditions_summary":"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.","public_affected_ranges":["<= 2.8.11"]}],"null_published_at":"2026-11-07T07:07:39.832Z","source_updated_at":"2026-06-12T21:51:09.000Z","source_disclosed_at":"2026-06-10T00:31:52.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-06T15:12:54.193Z"}],"next_cursor":null,"snapshot_revision":"42594"}