{"cve":{"cve_id":"CVE-2026-54513","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":null,"epss_percentile":null,"epss_as_of":null,"description":"jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.10.0 until 2.18.8, 2.21.4, and 3.1.4, BasicPolymorphicTypeValidator.Builder.allowIfSubTypeIsArray() allowlists any array type based only on clazz.isArray(), without validating the array's component (element) type against the configured allowlist. A PTV built with allowIfSubTypeIsArray() plus an explicit concrete-type allowlist therefore still permits EvilType[] even though EvilType is not allowlisted. When Jackson deserializes the elements and no per-element type IDs are present, it instantiates the component type directly with no further PTV check, bypassing the allowlist. This vulnerability is fixed in 2.18.8, 2.21.4, and 3.1.4.","published_at":"2026-06-23T20:53:52.543000Z","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-184"],"nvd_references":["https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-rmj7-2vxq-3g9f","https://github.com/FasterXML/jackson-databind/issues/5981","https://github.com/FasterXML/jackson-databind/issues/5983","https://github.com/FasterXML/jackson-databind/pull/5984","https://github.com/FasterXML/jackson-databind/commit/01d1692c8d0ed03e51a0e3c4f8a9e6908e4931e5","https://github.com/FasterXML/jackson-databind/commit/24529da29fdf46ff94ca38de9ebf31cd188f5e8e"],"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":"2026-06-28T17:55:37.240342Z","updated_at":"2026-06-28T23:30:54.391983Z"},"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":"fasterxml","vendor_name":"FasterXML","product_slug":"jackson-databind","product_name":"jackson-databind","version_start":">= 2.10.0, < 2.18.8","version_start_inclusive":true,"version_end":">= 2.10.0, < 2.18.8","version_end_inclusive":true,"cpe23_uri":"cve5:fasterxml:jackson-databind:>= 2.10.0, < 2.18.8:>= 2.10.0, < 2.18.8"},{"vendor_slug":"fasterxml","vendor_name":"FasterXML","product_slug":"jackson-databind","product_name":"jackson-databind","version_start":">= 2.19.0, < 2.21.4","version_start_inclusive":true,"version_end":">= 2.19.0, < 2.21.4","version_end_inclusive":true,"cpe23_uri":"cve5:fasterxml:jackson-databind:>= 2.19.0, < 2.21.4:>= 2.19.0, < 2.21.4"},{"vendor_slug":"fasterxml","vendor_name":"FasterXML","product_slug":"jackson-databind","product_name":"jackson-databind","version_start":">= 3.0.0, < 3.1.4","version_start_inclusive":true,"version_end":">= 3.0.0, < 3.1.4","version_end_inclusive":true,"cpe23_uri":"cve5:fasterxml:jackson-databind:>= 3.0.0, < 3.1.4:>= 3.0.0, < 3.1.4"}],"exploit_refs":[],"news":[],"references":[{"url":"https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-rmj7-2vxq-3g9f","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://github.com/FasterXML/jackson-databind/issues/5981","source_type":"MISC","tags":[]},{"url":"https://github.com/FasterXML/jackson-databind/issues/5983","source_type":"MISC","tags":[]},{"url":"https://github.com/FasterXML/jackson-databind/pull/5984","source_type":"PATCH","tags":["patch"]},{"url":"https://github.com/FasterXML/jackson-databind/commit/01d1692c8d0ed03e51a0e3c4f8a9e6908e4931e5","source_type":"PATCH","tags":["patch"]},{"url":"https://github.com/FasterXML/jackson-databind/commit/24529da29fdf46ff94ca38de9ebf31cd188f5e8e","source_type":"PATCH","tags":["patch"]}],"timeline":[{"type":"published","at":"2026-06-23T20:53:52.543000Z","label":"CVE published","source":null}]}