CVE-2026-53571: vite: `server.fs.deny` bypass on Windows alternate paths

June 15, 2026

The contents of files that are specified by server.fs.deny can be returned to the browser on Windows.

References

github.com/advisories/GHSA-fx2h-pf6j-xcff
github.com/vitejs/vite/security/advisories/GHSA-fx2h-pf6j-xcff
nvd.nist.gov/vuln/detail/CVE-2026-53571

Code Behaviors & Features

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