{"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":"2026-07-10T15:02:07.512Z"},"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"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-10T15:01:58.719561Z","id":"CVE-2026-56669","options":[{"Exploitation":"none"},{"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":"2026-07-10T15:02:07.512Z"}}]}}