CVE-2026-114063
SvelteKit 2.10.0 before 3.0.0 Path Traversal via vite preview on Windows
- State
- Published
- Severity
- 8.7 High
- Published
- Oct 21, 2026
- Updated
- Oct 27, 2026
- Reserved
- Oct 20, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Products
| Product | Versions |
|---|---|
kitsveltejs |
|
References
- GitHub Security Advisory (GHSA-xgrj-p7pg-6vm3)vendor-advisory
- VulnCheck Advisory: SvelteKit 2.10.0 before 3.0.0 Path Traversal via vite preview on Windowsthird-party-advisory
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