CVE-2026-128116

SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Prior to versions 2.70.4 and 3.1.1, apps configured with router.resolution: 'server' could treat a pathname beginning with // as a protocol-relative module specifier during client-side navigation. A socially engineered link could therefore make server-side route resolution import and execute JavaScript from another origin in the user's browser. This issue is fixed in 2.70.4 and 3.1.1.

• CWE-79

• https://github.com/sveltejs/kit/commit/0a2e58cbccdd46cac20aa5af4e2edf17e0da11dd
• https://github.com/sveltejs/kit/commit/a8f7c1e09f13524d3b71d814bad9c15c9f33ef49
• https://github.com/sveltejs/kit/pull/17620
• https://github.com/sveltejs/kit/releases/tag/@sveltejs/kit@2.70.4
• https://github.com/sveltejs/kit/releases/tag/@sveltejs/kit@3.1.1
• https://github.com/sveltejs/kit/security/advisories/GHSA-rqp5-r3wg-vg35

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.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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