{"id":"CVE-2026-44483","revision":"5f29d3926b534b9a8d050d178cad1dc7","records":[{"revision":"5f29d3926b534b9a8d050d178cad1dc7","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-44483","aliases":[],"title":"RVF: Prototype pollution in @rvf/set-get reachable via @rvf/core preprocessFormData (HTTP form data)","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.","state":0,"publishedAt":"2026-05-27T15:20:43.045+00:00","modifiedAt":"2026-05-27T18:48:41.768+00:00","affected":[{"ecosystem":"Vendor product","name":"rvf","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"airjp73\",\n                    \"product\": \"rvf\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 7.0.0, < 7.0.2\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 6.0.0, < 6.0.4\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"set-get","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"@rvf\",\n                    \"product\": \"set-get\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 7.0.0, < 7.0.2\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 6.0.0, < 6.0.4\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L","score":8.2,"severity":"HIGH"}],"references":["https://github.com/airjp73/rvf/security/advisories/GHSA-c567-44rc-m5hq"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-44483","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-44483","identifiers":["CVE-2026-44483"]},"retained":false,"historicalAffected":[]}],"coverage":[]}