CVE-2026-30837
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductElysia
PublishedMar 10, 2026
First seenMar 10, 2026
Weakness typeCWE-1333CWE-1333
How to fix
Update
- elysiajs elysia1.4.26 or later
- elysia1.4.26 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| elysiajs elysia | v < 1.4.26 | 1.4.26 |
| elysianpm | v < 1.4.26 | 1.4.26 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.