GHSA-93M4-6634-74Q7
Vulnerability from github – Published: 2025-10-20 19:54 – Updated: 2025-10-21 14:51
VLAI
Summary
vite allows server.fs.deny bypass via backslash on Windows
Details
Summary
Files denied by server.fs.deny 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:
- explicitly exposes the Vite dev server to the network (using --host or
server.hostconfig option) - running the dev server on Windows
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
Severity
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 7.1.10"
},
"package": {
"ecosystem": "npm",
"name": "vite"
},
"ranges": [
{
"events": [
{
"introduced": "7.1.0"
},
{
"fixed": "7.1.11"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 7.0.7"
},
"package": {
"ecosystem": "npm",
"name": "vite"
},
"ranges": [
{
"events": [
{
"introduced": "7.0.0"
},
{
"fixed": "7.0.8"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 6.4.0"
},
"package": {
"ecosystem": "npm",
"name": "vite"
},
"ranges": [
{
"events": [
{
"introduced": "6.0.0"
},
{
"fixed": "6.4.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c 3.0.0"
},
"package": {
"ecosystem": "npm",
"name": "vite"
},
"ranges": [
{
"events": [
{
"introduced": "2.9.18"
},
{
"fixed": "5.4.21"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c 4.0.0"
},
"package": {
"ecosystem": "npm",
"name": "vite"
},
"ranges": [
{
"events": [
{
"introduced": "3.2.9"
},
{
"fixed": "5.4.21"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c 5.0.0"
},
"package": {
"ecosystem": "npm",
"name": "vite"
},
"ranges": [
{
"events": [
{
"introduced": "4.5.3"
},
{
"fixed": "5.4.21"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 5.4.20"
},
"package": {
"ecosystem": "npm",
"name": "vite"
},
"ranges": [
{
"events": [
{
"introduced": "5.2.6"
},
{
"fixed": "5.4.21"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2025-62522"
],
"database_specific": {
"cwe_ids": [
"CWE-22"
],
"github_reviewed": true,
"github_reviewed_at": "2025-10-20T19:54:28Z",
"nvd_published_at": "2025-10-20T20:15:37Z",
"severity": "MODERATE"
},
"details": "### Summary\nFiles denied by [`server.fs.deny`](https://vitejs.dev/config/server-options.html#server-fs-deny) were sent if the URL ended with `\\` when the dev server is running on Windows.\n\n### Impact\nOnly apps that match the following conditions are affected:\n\n- explicitly exposes the Vite dev server to the network (using --host or [`server.host` config option](https://vitejs.dev/config/server-options.html#server-host))\n- running the dev server on Windows\n\n### Details\n`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(\u0027/foo.png/\u0027)` loads `/foo.png`.\n\n### PoC\n```shell\nnpm create vite@latest\ncd vite-project/\ncat \"secret\" \u003e .env\nnpm install\nnpm run dev\ncurl --request-target /.env\\ http://localhost:5173\n```\n\u003cimg width=\"1593\" height=\"616\" alt=\"image\" src=\"https://github.com/user-attachments/assets/36212f4e-1d3c-4686-b16f-16b35ca9e175\" /\u003e",
"id": "GHSA-93m4-6634-74q7",
"modified": "2025-10-21T14:51:26Z",
"published": "2025-10-20T19:54:28Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/vitejs/vite/security/advisories/GHSA-93m4-6634-74q7"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-62522"
},
{
"type": "WEB",
"url": "https://github.com/vitejs/vite/commit/f479cc57c425ed41ceb434fecebd63931b1ed4ed"
},
{
"type": "PACKAGE",
"url": "https://github.com/vitejs/vite"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "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",
"type": "CVSS_V4"
}
],
"summary": "vite allows server.fs.deny bypass via backslash on Windows"
}
BREW-VITE-CVE-2025-62522 (GHSA-93M4-6634-74Q7)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:48 – Updated: 2026-09-17 19:24 – Source website
VLAI
Summary
vite allows server.fs.deny bypass via backslash on Windows
Details
Summary
Files denied by server.fs.deny 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:
- explicitly exposes the Vite dev server to the network (using --host or
server.hostconfig option) - running the dev server on Windows
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
Severity
References
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"upstream_fixed_in": "7.1.11"
},
"package": {
"ecosystem": "Homebrew",
"name": "vite",
"purl": "pkg:brew/vite"
},
"ranges": [
{
"events": [
{
"introduced": "3.0.0"
},
{
"fixed": "7.1.11"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "npm",
"key": "pkg:npm/vite@8.3.0",
"name": "vite",
"strategy": "registry",
"subject_version": "8.3.0"
}
]
},
"details": "### Summary\nFiles denied by [`server.fs.deny`](https://vitejs.dev/config/server-options.html#server-fs-deny) were sent if the URL ended with `\\` when the dev server is running on Windows.\n\n### Impact\nOnly apps that match the following conditions are affected:\n\n- explicitly exposes the Vite dev server to the network (using --host or [`server.host` config option](https://vitejs.dev/config/server-options.html#server-host))\n- running the dev server on Windows\n\n### Details\n`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(\u0027/foo.png/\u0027)` loads `/foo.png`.\n\n### PoC\n```shell\nnpm create vite@latest\ncd vite-project/\ncat \"secret\" \u003e .env\nnpm install\nnpm run dev\ncurl --request-target /.env\\ http://localhost:5173\n```\n\u003cimg width=\"1593\" height=\"616\" alt=\"image\" src=\"https://github.com/user-attachments/assets/36212f4e-1d3c-4686-b16f-16b35ca9e175\" /\u003e",
"id": "BREW-vite-CVE-2025-62522",
"modified": "2026-09-17T19:24:34Z",
"published": "2026-08-13T17:48:54Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/vitejs/vite/security/advisories/GHSA-93m4-6634-74q7"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-62522"
},
{
"type": "WEB",
"url": "https://github.com/vitejs/vite/commit/f479cc57c425ed41ceb434fecebd63931b1ed4ed"
},
{
"type": "PACKAGE",
"url": "https://github.com/vitejs/vite"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "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",
"type": "CVSS_V4"
}
],
"summary": "vite allows server.fs.deny bypass via backslash on Windows",
"upstream": [
"GHSA-93m4-6634-74q7",
"CVE-2025-62522"
]
}
CVE-2025-62522 (GCVE-0-2025-62522)
Vulnerability from cvelistv5 – Published: 2025-10-20 19:57 – Updated: 2025-10-20 20:17
VLAI
EPSS
VEX
Title
vite allows server.fs.deny bypass via backslash on Windows
Summary
Vite is a frontend tooling framework for JavaScript. In versions from 2.9.18 to before 3.0.0, 3.2.9 to before 4.0.0, 4.5.3 to before 5.0.0, 5.2.6 to before 5.4.21, 6.0.0 to before 6.4.1, 7.0.0 to before 7.0.8, and 7.1.0 to before 7.1.11, files denied by server.fs.deny were sent if the URL ended with \ when the dev server is running on Windows. Only apps explicitly exposing the Vite dev server to the network and running the dev server on Windows were affected. This issue has been patched in versions 5.4.21, 6.4.1, 7.0.8, and 7.1.11.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-20 20:16 UTC
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/vitejs/vite/security/advisorie… | x_refsource_CONFIRM |
| https://github.com/vitejs/vite/commit/f479cc57c42… | x_refsource_MISC |
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-62522",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-10-20T20:16:51.209674Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-10-20T20:17:08.287Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "vite",
"vendor": "vitejs",
"versions": [
{
"status": "affected",
"version": "\u003e= 7.1.0, \u003c 7.1.11"
},
{
"status": "affected",
"version": "\u003e= 7.0.0, \u003c 7.0.8"
},
{
"status": "affected",
"version": "\u003e= 6.0.0, \u003c 6.4.1"
},
{
"status": "affected",
"version": "\u003e= 5.2.6, \u003c 5.4.21"
},
{
"status": "affected",
"version": "\u003e= 4.5.3, \u003c 5.0.0"
},
{
"status": "affected",
"version": "\u003e= 3.2.9, \u003c 4.0.0"
},
{
"status": "affected",
"version": "\u003e= 2.9.18, \u003c 3.0.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Vite is a frontend tooling framework for JavaScript. In versions from 2.9.18 to before 3.0.0, 3.2.9 to before 4.0.0, 4.5.3 to before 5.0.0, 5.2.6 to before 5.4.21, 6.0.0 to before 6.4.1, 7.0.0 to before 7.0.8, and 7.1.0 to before 7.1.11, files denied by server.fs.deny were sent if the URL ended with \\ when the dev server is running on Windows. Only apps explicitly exposing the Vite dev server to the network and running the dev server on Windows were affected. This issue has been patched in versions 5.4.21, 6.4.1, 7.0.8, and 7.1.11."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 6,
"baseSeverity": "MEDIUM",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "PASSIVE",
"vectorString": "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",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "NONE"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-22",
"description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-10-20T19:57:13.188Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/vitejs/vite/security/advisories/GHSA-93m4-6634-74q7",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/vitejs/vite/security/advisories/GHSA-93m4-6634-74q7"
},
{
"name": "https://github.com/vitejs/vite/commit/f479cc57c425ed41ceb434fecebd63931b1ed4ed",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vitejs/vite/commit/f479cc57c425ed41ceb434fecebd63931b1ed4ed"
}
],
"source": {
"advisory": "GHSA-93m4-6634-74q7",
"discovery": "UNKNOWN"
},
"title": "vite allows server.fs.deny bypass via backslash on Windows"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2025-62522",
"datePublished": "2025-10-20T19:57:13.188Z",
"dateReserved": "2025-10-15T15:03:28.135Z",
"dateUpdated": "2025-10-20T20:17:08.287Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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