high7.5
CVE-2026-56669
Elysia is a Typescript framework for request validation, type inference, OpenAPI documentation, and client-server communication.
Impact
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 packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | elysia | < 1.4.29 | 1.4.29 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-9643-4qgh-g8mx
- https://github.com/elysiajs/elysia/security/advisories/GHSA-9643-4qgh-g8mx
- https://nvd.nist.gov/vuln/detail/CVE-2026-56669
- https://github.com/elysiajs/elysia/commit/8358ff9efbcedf9534995f5977f26b9ceab59329
- https://gist.github.com/jviide/ea040eabe7bac058326174e2cd42dfd9
- https://github.com/elysiajs/elysia/releases/tag/1.4.29