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OpenAdvisories
Medium · 5.3 CVE-2026-128116 EUVD-2026-125727

SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Prior to versions 2.70.4 and 3.1.1, apps …

Published Nov 13, 2026 · Assigned by GitHub_M

Description

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.

Affected products

VendorProductAffectedFixed
sveltejs kit 3.0.0, < 3.1.1 —
sveltejs kit < 2.70.4 —

References