CVE-2026-56669

{
  "id": "CVE-2026-56669",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-08T21:16:50.690",
  "lastModified": "2026-10-25T17:10:00.197",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Elysia is a Typescript framework for request validation, type inference, OpenAPI documentation, and client-server communication. Prior to 1.4.29, Elysia uses getAll in form data normalization for multipart/form-data endpoints, causing the amount of work to grow quadratically with the number of unique key-value pairs and allowing CPU exhaustion. This issue is fixed in version 1.4.29."
    },
    {
      "lang": "es",
      "value": "Elysia es un framework de Typescript para validación de solicitudes, inferencia de tipos, documentación OpenAPI y comunicación cliente-servidor. Antes de la versión 1.4.29, Elysia utiliza getAll en la normalización de datos de formulario para endpoints multipart/form-data, lo que provoca que la cantidad de trabajo crezca cuadráticamente con el número de pares clave-valor únicos y permite el agotamiento de la CPU. Este problema está solucionado en la versión 1.4.29."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "elysiajs",
          "product": "elysia",
          "versions": [
            {
              "version": "< 1.4.29",
              "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:N/A:H",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-10T15:01:58.719561Z",
          "id": "CVE-2026-56669",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-407"
        },
        {
          "lang": "en",
          "value": "CWE-436"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://gist.github.com/jviide/ea040eabe7bac058326174e2cd42dfd9",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/elysiajs/elysia/commit/8358ff9efbcedf9534995f5977f26b9ceab59329",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/elysiajs/elysia/releases/tag/1.4.29",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/elysiajs/elysia/security/advisories/GHSA-9643-4qgh-g8mx",
      "source": "[email protected]"
    }
  ]
}