{
  "containers": {
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      "affected": [
        {
          "product": "elysia",
          "vendor": "elysiajs",
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              "status": "affected",
              "version": "\u003c 1.4.29"
            }
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        {
          "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-407",
              "description": "CWE-407: Inefficient Algorithmic Complexity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-436",
              "description": "CWE-436: Interpretation Conflict",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-08T20:25:18.200Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/elysiajs/elysia/security/advisories/GHSA-9643-4qgh-g8mx",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/elysiajs/elysia/security/advisories/GHSA-9643-4qgh-g8mx"
        },
        {
          "name": "https://github.com/elysiajs/elysia/commit/8358ff9efbcedf9534995f5977f26b9ceab59329",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/elysiajs/elysia/commit/8358ff9efbcedf9534995f5977f26b9ceab59329"
        },
        {
          "name": "https://gist.github.com/jviide/ea040eabe7bac058326174e2cd42dfd9",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://gist.github.com/jviide/ea040eabe7bac058326174e2cd42dfd9"
        },
        {
          "name": "https://github.com/elysiajs/elysia/releases/tag/1.4.29",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/elysiajs/elysia/releases/tag/1.4.29"
        }
      ],
      "source": {
        "advisory": "GHSA-9643-4qgh-g8mx",
        "discovery": "UNKNOWN"
      },
      "title": "Elysia: Inefficient Algorithmic Complexity and Interpretation Conflict"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-56669",
    "datePublished": "2026-07-08T20:25:18.200Z",
    "dateReserved": "2026-06-22T16:39:01.043Z",
    "dateUpdated": "2026-07-08T20:25:18.200Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-56669\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-07-08T21:16:50.690\",\"lastModified\":\"2026-07-08T21:16:50.690\",\"vulnStatus\":\"Received\",\"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.\"}],\"affected\":[{\"source\":\"security-advisories@github.com\",\"affectedData\":[{\"vendor\":\"elysiajs\",\"product\":\"elysia\",\"versions\":[{\"version\":\"\u003c 1.4.29\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"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}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-407\"},{\"lang\":\"en\",\"value\":\"CWE-436\"}]}],\"references\":[{\"url\":\"https://gist.github.com/jviide/ea040eabe7bac058326174e2cd42dfd9\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/elysiajs/elysia/commit/8358ff9efbcedf9534995f5977f26b9ceab59329\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/elysiajs/elysia/releases/tag/1.4.29\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/elysiajs/elysia/security/advisories/GHSA-9643-4qgh-g8mx\",\"source\":\"security-advisories@github.com\"}]}}"
  }
}