The Cloudflare Vite plugin enables a full-featured integration between Vite and the Workers runtime. When utilising the Cloudflare Vite plugin in its default configuration, all files are exposed by the local dev server, including files in the root directory that contain secret information such as .env and .dev.vars. This vulnerability is fixed in 1.6.0.
https://hackerone.com/reports/3117837
https://github.com/cloudflare/workers-sdk/security/advisories/GHSA-4pfg-2mw5-f8jx
https://github.com/cloudflare/workers-sdk/discussions/3455#discussioncomment-6165773
https://github.com/cloudflare/workers-sdk/commit/0e500720bf70016fa4ea21fc8959c4bd764ebc38
Published: 2025-09-19
Updated: 2026-04-15
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N
Severity: Medium
Base Score: 5.5
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Severity: Medium
Base Score: 6.3
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Severity: Medium
EPSS: 0.00042