VULNERABILITY INTELLIGENCE

CVE-2026-40074

CVSS score7.5 HIGH

EPSS probability0.37%

CISA KEVNot currently listed

Published2026-04-10

Last modified2026-10-26

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

Description

SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Prior to 2.57.1, redirect, when called from inside the handle server hook with a location parameter containing characters that are invalid in a HTTP header, will cause an unhandled TypeError. This could result in DoS on some platforms, especially if the location passed to redirect contains unsanitized user input. This vulnerability is fixed in 2.57.1.

Weakness classification

security-advisories@github.com: CWE-755

Primary references

security-advisories@github.com — Patch
security-advisories@github.com — Product, Release Notes
security-advisories@github.com — Vendor Advisory