CVE-2026-56669

HIGH7.5

Elysia: Inefficient Algorithmic Complexity and Interpretation Conflict

Published Jul 8, 2026

Modified 2 weeks ago

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.

References

WEB

https://gist.github.com/jviide/ea040eabe7bac058326174e2cd42dfd9

WEB

https://github.com/elysiajs/elysia/commit/8358ff9efbcedf9534995f5977f26b9ceab59329

WEB

https://github.com/elysiajs/elysia/releases/tag/1.4.29

WEB

https://github.com/elysiajs/elysia/security/advisories/GHSA-9643-4qgh-g8mx

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-56669

CVSS Analysis