CVE-2026-56669

high

Description

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

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

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

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

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

Details

Source: Mitre, NVD

Published: 2026-07-08

Updated: 2026-07-08

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High