CVE-2026-30837

PoC —

CVSS 3.1

7.5 high

EPSS

<1%p41

Published

Mar 10, 2026 (Mar 10, 2026)

Modified

Jun 17, 2026

Description

Elysia is a Typescript framework for request validation, type inference, OpenAPI documentation and client-server communication. Prior to 1.4.26 , t.String({ format: 'url' }) is vulnerable to ReDoS. Repeating a partial url format (protocol and hostname) multiple times cause regex to slow down significantly. This vulnerability is fixed in 1.4.26.

Vendors: elysiajs
Products: elysia
Weakness: CWE-1333
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (0.5%)

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