{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-44483","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-05-06T17:18:51.783Z","datePublished":"2026-05-27T15:20:43.045Z","dateUpdated":"2026-05-27T18:48:41.768Z"},"containers":{"cna":{"title":"RVF: Prototype pollution in @rvf/set-get reachable via @rvf/core preprocessFormData (HTTP form data)","problemTypes":[{"descriptions":[{"cweId":"CWE-1321","lang":"en","description":"CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L","version":"3.1"}}],"references":[{"name":"https://github.com/airjp73/rvf/security/advisories/GHSA-c567-44rc-m5hq","tags":["x_refsource_CONFIRM"],"url":"https://github.com/airjp73/rvf/security/advisories/GHSA-c567-44rc-m5hq"}],"affected":[{"vendor":"airjp73","product":"rvf","versions":[{"version":">= 7.0.0, < 7.0.2","status":"affected"},{"version":">= 6.0.0, < 6.0.4","status":"affected"}]},{"vendor":"@rvf","product":"set-get","versions":[{"version":">= 7.0.0, < 7.0.2","status":"affected"},{"version":">= 6.0.0, < 6.0.4","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-05-27T15:20:43.045Z"},"descriptions":[{"lang":"en","value":"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."}],"source":{"advisory":"GHSA-c567-44rc-m5hq","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/airjp73/rvf/security/advisories/GHSA-c567-44rc-m5hq","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-27T18:48:27.866654Z","id":"CVE-2026-44483","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-05-27T18:48:41.768Z"}}]}}