CVE-2026-30837

Published: Mar 10, 2026

Modified: Mar 11, 2026

PUBLISHED

CVSS v3.1

7.5

HIGH

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.

Vendor	Product	Versions
elysiajs	elysia	affected `< 1.4.26`

Weaknesses (CWE)

CWE-1333

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

https://github.com/elysiajs/elysia/security/advisories/GHSA-f45g-68q3-5w8x

x_refsource_CONFIRM

https://github.com/EdamAme-x/elysia-poc-redos

x_refsource_MISC

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CVE-2026-30837

Description

Affected Products

Weaknesses (CWE)

CVSS v3.1 Details

References