CVE-2026-44483

{
  "id": "CVE-2026-44483",
  "sourceIdentifier": "[email protected]",
  "published": "2026-05-27T17:16:39.510",
  "lastModified": "2026-10-26T11:10:00.157",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "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."
    },
    {
      "lang": "es",
      "value": "RVF (anteriormente Remix Validated Form) proporciona una fácil validación de formularios y gestión de estado para React. Desde 6.0.0 hasta antes de 6.0.4 y 7.0.2, setPath en @rvf/set-get (utilizado por @rvf/core para aplanar los datos de formulario entrantes en un objeto anidado) no bloquea las claves __proto__, constructor o prototype al recorrer una ruta. Debido a que los nombres de campo en los datos de formulario enviados se pasan directamente a setPath a través de preprocessFormData (y a través de parseFormData / validate), un atacante que puede enviar un formulario a una aplicación Remix / React Router usando la biblioteca puede establecer propiedades arbitrarias en Object.prototype del proceso del servidor en ejecución. Este es un primitivo de contaminación de prototipos alcanzable por defecto: no se requiere ninguna configuración especial. Cualquier endpoint que acepte un formulario a través de parseFormData o ejecute un validador creado con createValidator se ve afectado. Esta vulnerabilidad se corrige en 6.0.4 y 7.0.2."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "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"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L",
          "baseScore": 8.2,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 4.2
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-05-27T18:48:27.866654Z",
          "id": "CVE-2026-44483",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-1321"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/airjp73/rvf/security/advisories/GHSA-c567-44rc-m5hq",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/airjp73/rvf/security/advisories/GHSA-c567-44rc-m5hq",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}