CVE-2026-128118

SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. From version 3.0.0 until 3.1.1, the build-time server-only module guard did not treat src/params.js as a client entry point even though parameter matchers can run in the browser. Server-only modules imported through src/params.js could consequently enter the client bundle, where statically replaced private environment values or other server secrets could be exposed. This issue is fixed in 3.1.1.

• CWE-200
• CWE-668

• https://github.com/sveltejs/kit/commit/ae07803806f75b8b5662ae4ab92934ca1356fd84
• https://github.com/sveltejs/kit/releases/tag/@sveltejs/kit@3.1.1
• https://github.com/sveltejs/kit/security/advisories/GHSA-m9j8-jcmv-hp69

Published

Nov 13, 2026

Last Modified

Nov 13, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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