{"cve":{"cve_id":"CVE-2026-44483","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":0.00271,"epss_percentile":0.18527,"epss_as_of":"2026-06-23","description":"RVF (formerly Remix Validated Form) provides easy form validation and state management for React. From 6.0.0 to before 6.0.4 and 7.0.2, setPath in @rvf/set-get (used by @rvf/core to flatten incoming form data into a nested object) does not block the keys __proto__, constructor, or prototype when walking a path. Because field names in submitted form data are passed directly to setPath via preprocessFormData (and through parseFormData / validate), an attacker who can submit a form to a Remix / React Router app using the library can set arbitrary properties on Object.prototype of the running server process. This is a default-reachable prototype pollution primitive: no special configuration is required. Any endpoint that accepts a form via parseFormData or runs a validator created with createValidator is affected. This vulnerability is fixed in 6.0.4 and 7.0.2.","published_at":"2026-05-27T15:20:43.045000Z","last_modified_at":null,"cvss_v3_score":8.2,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L","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-1321"],"nvd_references":["https://github.com/airjp73/rvf/security/advisories/GHSA-c567-44rc-m5hq"],"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":"2026-06-28T23:30:29.004056Z"},"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":"L","value_label":"Low"},{"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":"N","value_label":"None"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"L","value_label":"Low"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"airjp73","vendor_name":"airjp73","product_slug":"rvf","product_name":"rvf","version_start":">= 7.0.0, < 7.0.2","version_start_inclusive":true,"version_end":">= 7.0.0, < 7.0.2","version_end_inclusive":true,"cpe23_uri":"cve5:airjp73:rvf:>= 7.0.0, < 7.0.2:>= 7.0.0, < 7.0.2"},{"vendor_slug":"airjp73","vendor_name":"airjp73","product_slug":"rvf","product_name":"rvf","version_start":">= 6.0.0, < 6.0.4","version_start_inclusive":true,"version_end":">= 6.0.0, < 6.0.4","version_end_inclusive":true,"cpe23_uri":"cve5:airjp73:rvf:>= 6.0.0, < 6.0.4:>= 6.0.0, < 6.0.4"},{"vendor_slug":"rvf","vendor_name":"@rvf","product_slug":"set-get","product_name":"set-get","version_start":">= 7.0.0, < 7.0.2","version_start_inclusive":true,"version_end":">= 7.0.0, < 7.0.2","version_end_inclusive":true,"cpe23_uri":"cve5:rvf:set-get:>= 7.0.0, < 7.0.2:>= 7.0.0, < 7.0.2"},{"vendor_slug":"rvf","vendor_name":"@rvf","product_slug":"set-get","product_name":"set-get","version_start":">= 6.0.0, < 6.0.4","version_start_inclusive":true,"version_end":">= 6.0.0, < 6.0.4","version_end_inclusive":true,"cpe23_uri":"cve5:rvf:set-get:>= 6.0.0, < 6.0.4:>= 6.0.0, < 6.0.4"}],"exploit_refs":[],"news":[],"references":[{"url":"https://github.com/airjp73/rvf/security/advisories/GHSA-c567-44rc-m5hq","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2026-05-27T15:20:43.045000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:54:29.867911Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:54:29.867911Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:54:29.867911Z","label":"CVSS score revised","source":"cvelistv5"}]}