{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-56669", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-22T16:39:01.043Z", "datePublished": "2026-07-08T20:25:18.200Z", "dateUpdated": "2026-07-08T20:25:18.200Z"}, "containers": {"cna": {"title": "Elysia: Inefficient Algorithmic Complexity and Interpretation Conflict", "problemTypes": [{"descriptions": [{"cweId": "CWE-407", "lang": "en", "description": "CWE-407: Inefficient Algorithmic Complexity", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-436", "lang": "en", "description": "CWE-436: Interpretation Conflict", "type": "CWE"}]}], "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"}}], "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"}], "affected": [{"vendor": "elysiajs", "product": "elysia", "versions": [{"version": "< 1.4.29", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-08T20:25:18.200Z"}, "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."}], "source": {"advisory": "GHSA-9643-4qgh-g8mx", "discovery": "UNKNOWN"}}}}

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