CVE-2026-53571
Vite: `server.fs.deny` bypass on Windows alternate paths
Description
Vite 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 can be returned to the browser on Windows. Vite’s dev server denies direct access to sensitive files through server.fs.deny, including entries such as .env, .env.*, and *.{crt,pem}. However, on Windows, the deny logic does not correctly normalize NTFS ADS path forms before access checks are applied. Because of this, requests such as /.env::$DATA?raw are treated as allowed paths, while Windows resolves them to the original file's default data stream. Similar to that, Windows allows accessing a file using a different name with the 8.3 short name compatibility feature. Vite did not reject accessing files via them. This vulnerability is fixed in 8.0.16, 7.3.5, and 6.4.3.
INFO
Published Date :
June 22, 2026, 6:16 p.m.
Last Modified :
June 24, 2026, 8:44 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-53571
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update Vite to version 8.0.16 or later.
- Apply patches for versions 7.3.5 and 6.4.3 if applicable.
- Ensure server.fs.deny is correctly configured.
Public PoC/Exploit Available at Github
CVE-2026-53571 has a 6 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-53571.
| URL | Resource |
|---|---|
| https://github.com/vitejs/vite/security/advisories/GHSA-fx2h-pf6j-xcff | Exploit Vendor Advisory |
| https://github.com/vitejs/vite/security/advisories/GHSA-fx2h-pf6j-xcff | Exploit Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-53571 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-53571
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
CVE-2026-53571 `server.fs.deny` bypass on Windows alternate paths PoC.
Python
This is where I keep my write ups for my home lab.
内化宇宙破产神选监工群网站
JavaScript HTML CSS TypeScript Shell
None
Dockerfile
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PHP CSS JavaScript Shell HTML Python Dockerfile TypeScript Batchfile SCSS
📡 PoC auto collect from GitHub. ⚠️ Be careful Malware.
security cve exploit poc vulnerability
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-53571 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-53571 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jun. 24, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Added CPE Configuration AND OR *cpe:2.3:a:vitejs:vite:*:*:*:*:*:node.js:*:* versions up to (excluding) 6.4.3 *cpe:2.3:a:vitejs:vite:*:*:*:*:*:node.js:*:* versions from (including) 7.0.0 up to (excluding) 7.3.5 *cpe:2.3:a:vitejs:vite:*:*:*:*:*:node.js:*:* versions from (including) 8.0.0 up to (excluding) 8.0.16 *cpe:2.3:a:voidzero:vite+:*:*:*:*:*:node.js:*:* versions up to (excluding) 0.1.24 OR cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Added Reference Type GitHub, Inc.: https://github.com/vitejs/vite/security/advisories/GHSA-fx2h-pf6j-xcff Types: Exploit, Vendor Advisory Added Reference Type CISA-ADP: https://github.com/vitejs/vite/security/advisories/GHSA-fx2h-pf6j-xcff Types: Exploit, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 22, 2026
Action Type Old Value New Value Added Reference https://github.com/vitejs/vite/security/advisories/GHSA-fx2h-pf6j-xcff Added SSVC {'id': 'CVE-2026-53571', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-06-22T18:07:16.554503Z'} -
New CVE Received by [email protected]
Jun. 22, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'vitejs', 'product': 'vite', 'versions': [{'status': 'affected', 'version': '>= 8.0.0, < 8.0.16'}, {'status': 'affected', 'version': '>= 7.0.0, < 7.3.5'}, {'status': 'affected', 'version': '< 6.4.3'}]}] Added Description Vite 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 can be returned to the browser on Windows. Vite’s dev server denies direct access to sensitive files through server.fs.deny, including entries such as .env, .env.*, and *.{crt,pem}. However, on Windows, the deny logic does not correctly normalize NTFS ADS path forms before access checks are applied. Because of this, requests such as /.env::$DATA?raw are treated as allowed paths, while Windows resolves them to the original file's default data stream. Similar to that, Windows allows accessing a file using a different name with the 8.3 short name compatibility feature. Vite did not reject accessing files via them. This vulnerability is fixed in 8.0.16, 7.3.5, and 6.4.3. Added CVSS V4.0 AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-22 Added CWE CWE-200 Added Reference https://github.com/vitejs/vite/security/advisories/GHSA-fx2h-pf6j-xcff