CVE-2026-114063

high

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.

References

https://www.vulncheck.com/advisories/sveltekit-2.10.0-before-3.0.0-path-traversal-via-vite-preview-on-windows

https://github.com/sveltejs/kit/security/advisories/GHSA-xgrj-p7pg-6vm3

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-107014

Details

Source: Mitre, NVD

Published: 2026-10-21

Updated: 2026-10-27

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Severity: High

CVSS v4

Base Score: 8.7

Vector: 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

Severity: High

EPSS

EPSS: 0.00405