GHSA-93m4-6634-74q7

Suggest an improvement
Source
https://github.com/advisories/GHSA-93m4-6634-74q7
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/10/GHSA-93m4-6634-74q7/GHSA-93m4-6634-74q7.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-93m4-6634-74q7
Aliases
Downstream
Related
Published
2025-10-20T19:54:28Z
Modified
2025-10-21T14:51:26Z
Severity
  • 6.0 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
vite allows server.fs.deny bypass via backslash on Windows
Details

Summary

Files denied by <code>server.fs.deny</code> were sent if the URL ended with \ when the dev server is running on Windows.

Impact

Only apps that match the following conditions are affected:

Details

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 by using a back slash(\). The root cause is that fs.readFile('/foo.png/') loads /foo.png.

PoC

npm create vite@latest
cd vite-project/
cat "secret" > .env
npm install
npm run dev
curl --request-target /.env\ http://localhost:5173

<img width="1593" height="616" alt="image" src="https://github.com/user-attachments/assets/36212f4e-1d3c-4686-b16f-16b35ca9e175" />

Database specific
{
    "nvd_published_at": "2025-10-20T20:15:37Z",
    "github_reviewed": true,
    "github_reviewed_at": "2025-10-20T19:54:28Z",
    "severity": "MODERATE",
    "cwe_ids": [
        "CWE-22"
    ]
}
References

Affected packages

npm

vite

Package

Name
vite
View open source insights on deps.dev
Purl
pkg:npm/vite

Affected ranges

Type
SEMVER
Events
Introduced
7.1.0
Fixed
7.1.11

Database specific

last_known_affected_version_range

"<= 7.1.10"

vite

Package

Name
vite
View open source insights on deps.dev
Purl
pkg:npm/vite

Affected ranges

Type
SEMVER
Events
Introduced
7.0.0
Fixed
7.0.8

Database specific

last_known_affected_version_range

"<= 7.0.7"

vite

Package

Name
vite
View open source insights on deps.dev
Purl
pkg:npm/vite

Affected ranges

Type
SEMVER
Events
Introduced
6.0.0
Fixed
6.4.1

Database specific

last_known_affected_version_range

"<= 6.4.0"

vite

Package

Name
vite
View open source insights on deps.dev
Purl
pkg:npm/vite

Affected ranges

Type
SEMVER
Events
Introduced
2.9.18
Fixed
5.4.21

Database specific

last_known_affected_version_range

"< 3.0.0"

vite

Package

Name
vite
View open source insights on deps.dev
Purl
pkg:npm/vite

Affected ranges

Type
SEMVER
Events
Introduced
3.2.9
Fixed
5.4.21

Database specific

last_known_affected_version_range

"< 4.0.0"

vite

Package

Name
vite
View open source insights on deps.dev
Purl
pkg:npm/vite

Affected ranges

Type
SEMVER
Events
Introduced
4.5.3
Fixed
5.4.21

Database specific

last_known_affected_version_range

"< 5.0.0"

vite

Package

Name
vite
View open source insights on deps.dev
Purl
pkg:npm/vite

Affected ranges

Type
SEMVER
Events
Introduced
5.2.6
Fixed
5.4.21

Database specific

last_known_affected_version_range

"<= 5.4.20"