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CVE-2026-40074

6.3 medium SSVC exploitation: none Analyzed
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 2

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 6.3 · svelteNVD modified 2026-10-26 21:10

Affected (CPE criteria) 1

  • cpe:2.3:a:svelte:kit:*:*:*:*:*:node.js:*:*

References 3