CVE-2025-59427: Cloudflare Workers-SDK

Low severity, CVSS 2.9. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

• Cloudflare Workers-SDK: before 1.6.0 (fixed in 1.6.0)

Published 2025-09-19. Last modified 2026-06-17.