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OpenAdvisories
High · 7.5 CVE-2026-114063 EUVD-2026-107014GHSA-92p4-8jf4-qc63

SvelteKit 2.10.0 before 3.0.0 Path Traversal via vite preview on Windows

Published Oct 21, 2026 · Updated Oct 27, 2026 · Assigned by VulnCheck

Description

SvelteKit (@sveltejs/kit) from 2.10.0 before 3.0.0 contains a path traversal vulnerability in the vite preview server on Windows that allows unauthenticated attackers to read files outside the prerendered output directory. Attackers who can reach the preview server through network access or a tunnel can send crafted requests to expose source code, configuration, or credentials readable by the server process.

Affected products

VendorProductAffectedFixed
sveltejs kit 2.10.0 – < 3.0.0 3.0.0

References