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Vulnerability record · CVE-2024-23331 · published 19 January 2024

CVE-2024-23331: Vitejs vite information exposure vulnerability

Vitejs · Vite

Vite is a frontend tooling framework for javascript. The Vite dev server option `server.fs.deny` can be bypassed on case-insensitive file systems using case-augmented versions of filenames. Notably this affects servers hosted on Windows. This bypass is similar to CVE-2023-34092 -- with surface area reduced to hosts having case-insensitive filesystems. Since `picomatch` defaults to case-sensitive glob matching, but the file server doesn't discriminate; a blacklist bypass is possible. By requesting raw filesystem paths using augmented casing, the matcher derived from `config.server.fs.deny` fails to block access to sensitive files. This issue has been addressed in [email protected], [email protected], [email protected], and [email protected]. Users are advised to upgrade. Users unable to upgrade should restrict access to dev servers.

7.5 CVSS 3.1 High EPSS 0.78% · top 45.7% CWE-178 · CWE-178CWE-200 · Information exposure
7.5CVSS 3.1 base score
0.78%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Vite is a frontend tooling framework for javascript. The Vite dev server option `server.fs.deny` can be bypassed on case-insensitive file systems using case-augmented versions of filenames. Notably this affects servers hosted on Windows. This bypass is similar to CVE-2023-34092 -- with surface area reduced to hosts having case-insensitive filesystems. Since `picomatch` defaults to case-sensitive glob matching, but the file server doesn't discriminate; a blacklist bypass is possible. By requesting raw filesystem paths using augmented casing, the matcher derived from `config.server.fs.deny` fails to block access to sensitive files. This issue has been addressed in [email protected], [email protected], [email protected], and [email protected]. Users are advised to upgrade. Users unable to upgrade should restrict access to dev servers.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/vitejs/vite/commit/91641c4da0a011d4c5352e88fc68389d4e1289a5 Patch
https://github.com/vitejs/vite/security/advisories/GHSA-c24v-8rfc-w8vw ExploitVendor Advisory
https://vitejs.dev/config/server-options.html#server-fs-deny Product
https://github.com/vitejs/vite/commit/91641c4da0a011d4c5352e88fc68389d4e1289a5 Patch
https://github.com/vitejs/vite/security/advisories/GHSA-c24v-8rfc-w8vw ExploitVendor Advisory
https://vitejs.dev/config/server-options.html#server-fs-deny Product

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.5CVE-2025-31125Vite dev server improper access control exposes arbitrary filesVite's dev server fails to restrict file access when a request uses the ?inline&import or ?raw?import query patterns, allowing content of files that …KEVEPSS 65%analysed8.2CVE-2026-53571Vitejs vite path traversal vulnerabilityVite is a frontend tooling framework for JavaScript. Prior to 8.0.16, 7.3.5, and 6.4.3, the contents of files that are specified by server.fs.deny ca…EPSS 0.58%8.2CVE-2026-39363Vitejs vite information exposure vulnerabilityVite is a frontend tooling framework for JavaScript. From 6.0.0 to before 6.4.2, 7.3.2, and 8.0.5, if it is possible to connect to the Vite dev serve…EPSS 2.6%8.2CVE-2026-39364Vitejs vite improper access control vulnerabilityVite is a frontend tooling framework for JavaScript. From 7.1.0 to before 7.3.2 and 8.0.5, on the Vite dev server, files that should be blocked by se…EPSS 1.5%7.5CVE-2025-30208Vite dev server @fs allow-list bypass exposes arbitrary filesVite versions before 6.2.3, 6.1.2, 6.0.12, 5.4.15 and 4.5.10 mishandle trailing separators in query string regexes, so appending ?raw?? or ?import&ra…EPSS 75%analysed7.5CVE-2023-34092Vitejs vite information exposure vulnerabilityVite provides frontend tooling. Prior to versions 2.9.16, 3.2.7, 4.0.5, 4.1.5, 4.2.3, and 4.3.9, Vite Server Options (`server.fs.deny`) can be bypass…EPSS 3.1%6.5CVE-2025-24010Vitejs vite origin validation error vulnerabilityVite is a frontend tooling framework for javascript. Vite allowed any websites to send any requests to the development server and read the response d…EPSS 0.29%6.3CVE-2026-39365Vitejs vite path traversal vulnerabilityVite is a frontend tooling framework for JavaScript. From 6.0.0 to before 6.4.2, 7.3.2, and 8.0.5, the dev server’s handling of .map requests for opt…EPSS 0.98%

Source: NIST National Vulnerability Database (record CVE-2024-23331), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.