Vite's server.fs.deny bypassed with /. for files under project root

Description

Vite is a frontend tooling framework for javascript. Prior to versions 6.3.4, 6.2.7, 6.1.6, 5.4.19, and 4.5.14, the contents of files in the project root that are denied by a file matching pattern can be returned to the browser. Only apps explicitly exposing the Vite dev server to the network (using --host or server.host config option) are affected. Only files that are under project root and are denied by a file matching pattern can be bypassed. `server.fs.deny` can contain patterns matching against files (by default it includes .env, .env.*, *.{crt,pem} as such patterns). These patterns were able to bypass for files under `root` by using a combination of slash and dot (/.). This issue has been patched in versions 6.3.4, 6.2.7, 6.1.6, 5.4.19, and 4.5.14.

Scores

EPSS (exploitation in 30 days)

1.2% · top 31% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: poc · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.0.

Weakness

• CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (opens in a new tab)All about CWE-22 and its CVEs

Affected products

• vitejs · vite

  • affected >= 6.3.0, < 6.3.4
  • affected >= 6.2.0, < 6.2.7
  • affected >= 6.0.0, < 6.1.6
  • affected >= 5.0.0, < 5.4.19
  • affected < 4.5.14

Affected packages

From reviewed advisories of the GitHub Advisory Database.

• npmviteGHSA-859w-5945-r5v3 (opens in a new tab)

References (2)

• https://github.com/vitejs/vite/security/advisories/GHSA-859w-5945-r5v3 (opens in a new tab)x_refsource_CONFIRMexploit
• https://github.com/vitejs/vite/commit/c22c43de612eebb6c182dd67850c24e4fab8cacb (opens in a new tab)x_refsource_MISC

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisory GHSA-859w-5945-r5v3 (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2025-46565](https://trackcve.app/badge/CVE-2025-46565.svg)](https://trackcve.app/cve/CVE-2025-46565)

Record last updated 2 May 2025, 17:38 UTC.