{"id":"CVE-2026-56669","summary":"Elysia: Inefficient Algorithmic Complexity and Interpretation Conflict","details":"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.","aliases":["GHSA-9643-4qgh-g8mx"],"modified":"2026-07-15T01:49:13.605792404Z","published":"2026-07-08T20:25:18.200Z","database_specific":{"cwe_ids":["CWE-407","CWE-436"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56669.json","cna_assigner":"GitHub_M"},"references":[{"type":"WEB","url":"https://gist.github.com/jviide/ea040eabe7bac058326174e2cd42dfd9"},{"type":"WEB","url":"https://github.com/elysiajs/elysia/releases/tag/1.4.29"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56669.json"},{"type":"ADVISORY","url":"https://github.com/elysiajs/elysia/security/advisories/GHSA-9643-4qgh-g8mx"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56669"},{"type":"FIX","url":"https://github.com/elysiajs/elysia/commit/8358ff9efbcedf9534995f5977f26b9ceab59329"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/elysiajs/elysia","events":[{"introduced":"0"},{"fixed":"8358ff9efbcedf9534995f5977f26b9ceab59329"}],"database_specific":{"source":["AFFECTED_FIELD","REFERENCES"],"extracted_events":[{"introduced":"0"},{"fixed":"1.4.29"}]}}],"versions":["1.4.28","1.4.26","1.4.27","1.4.25","1.4.24","1.4.23","1.4.18","1.4.22","1.4.21","1.4.20","1.4.19","1.4.17","1.4.16","1.4.15","1.4.14","1.4.13","1.4.12","1.4.11","1.4.10","1.4.9","1.4.8","1.4.6","1.4.5","1.4.4","1.4.3","1.4.2","1.4.1","1.3.12","1.3.11","1.3.10","1.3.9","1.3.8","1.3.7","1.3.6","1.3.5","1.3.4","1.3.3","1.3.2","1.3.1","1.3.0","1.2.25","1.2.24","1.2.23","1.2.22","1.2.21","1.2.20","1.2.19","1.2.18","1.2.17","1.2.16","1.2.15","1.2.14","1.2.13","1.2.12","1.2.11","1.2.10","1.2.9","1.2.8","1.2.7","1.2.6","1.2.5","1.2.4","1.2.3","1.2.2","1.2.1","1.1.13","1.1.12","0.8.0-exp.10","0.7","v0.5.1","v0.4.12","0.4","0.3","0.2.0","0.1","0.0.0-experimental.51","0.0.0-experimental.39","0.0.0-experimental.37","0.0.0-experimental.29","0.0.0-experimental.28"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-56669.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}