{"id":"GHSA-fx2h-pf6j-xcff","revision":null,"records":[{"revision":"ca05f96232194d4a9d8c0b6899b2c416","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-53571","aliases":[],"title":"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.","state":0,"publishedAt":"2026-06-22T16:10:58.5+00:00","modifiedAt":"2026-06-22T18:07:53.961+00:00","affected":[{"ecosystem":"Vendor product","name":"vite","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"vitejs\",\n                    \"product\": \"vite\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 8.0.0, < 8.0.16\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 7.0.0, < 7.3.5\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"< 6.4.3\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","score":8.2,"severity":"HIGH"}],"references":["https://github.com/vitejs/vite/security/advisories/GHSA-fx2h-pf6j-xcff"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-53571","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-53571","identifiers":["CVE-2026-53571"]},"retained":false,"historicalAffected":[]},{"revision":"7468693e329249a3a593838a13eabffd","observedAt":"2026-10-30T08:59:14.067+00:00","statement":{"source":"euvd","id":"EUVD-2026-38303","aliases":["CVE-2026-53571","GHSA-fx2h-pf6j-xcff"],"title":"Vite is a frontend tooling framework for JavaScript. 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This vulnerability is fixed in 8.0.16, 7.3.5, and 6.4.3.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","score":8.2,"severity":null}],"references":["https://github.com/vitejs/vite/security/advisories/GHSA-fx2h-pf6j-xcff"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-38303","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Jun 22, 2026, 4:10:58 PM","dateUpdated":"Jun 22, 2026, 6:07:53 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. 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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. 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Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-53571","identifiers":["CVE-2026-53571"]},"retained":false,"historicalAffected":[]},{"revision":"a583831f82fe4f4f909ca56dfec7a1e7","observedAt":"2026-10-27T15:44:25.492+00:00","statement":{"source":"osv","id":"GHSA-fx2h-pf6j-xcff","aliases":["CVE-2026-53571"],"title":"vite: `server.fs.deny` bypass on Windows alternate paths","description":"### Summary\n\nThe contents of files that are specified by [`server.fs.deny`](https://vite.dev/config/server-options#server-fs-deny) can be returned to the browser on Windows.\n\n### Impact\n\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- the sensitive file exists in the allowed directories specified by [`server.fs.allow`](https://vite.dev/config/server-options#server-fs-allow)\n- either of:\n  - the sensitive file exists in an NTFS volume\n  - the dev server is running on Windows and the sensitive file exists in a volume that 8.3 short name generation is enabled (it is enabled by default on system volumes)\n\n### Details\n\nVite’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.\nBecause of this, requests such as `/.env::$DATA?raw` are treated as allowed paths, while Windows resolves them to the original file's default data stream.\n\nSimilar to that, Windows allows accessing a file using a different name with the 8.3 short name compatibility feature. Vite did not reject accessing files via them.\n\n### PoC\n```bash\n$ npm create vite@latest\n$ cd vite-project/\n$ npm install\n$ npm run dev\n```\nAccess via browser at `http://localhost:5173/.env::$DATA?raw`\n<img width=\"388\" height=\"129\" alt=\"deecc1315123883cfd0f9c26a002845a\" src=\"https://github.com/user-attachments/assets/895c6012-4e2e-4a35-babb-69bbf3ee7170\" />\n\nExample expected result:\n- `/.env::$DATA?raw` returns the contents of `.env`\n- `/tls.pem::$DATA?raw` returns the contents of `tls.pem`","state":0,"publishedAt":"2026-06-15T17:17:45+00:00","modifiedAt":"2026-10-27T15:15:07.885624+00:00","affected":[{"ecosystem":"npm","name":"vite","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"8.0.0"},{"kind":"fixed","version":"8.0.16"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"vite","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"7.0.0"},{"kind":"fixed","version":"7.3.5"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"vite","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"6.4.3"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"vite-plus","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"0.1.24"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V4","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://github.com/vitejs/vite/security/advisories/GHSA-fx2h-pf6j-xcff","https://nvd.nist.gov/vuln/detail/CVE-2026-53571","https://github.com/vitejs/vite"],"sourceUrl":"https://github.com/advisories/GHSA-fx2h-pf6j-xcff","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-fx2h-pf6j-xcff","identifiers":["GHSA-fx2h-pf6j-xcff","CVE-2026-53571"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-8870e893ba424d12a55f346e058bfe39","complete":false,"records":13526,"lastAttemptAt":"2026-10-30T15:56:03.717361+00:00","lastSuccessAt":"2026-10-30T15:56:03.7885558+00:00","error":null,"lastVerifiedAt":"2026-10-30T15:56:03.7885558+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-10-30T15:47:49.0266630+00:00","complete":true,"records":1094,"lastAttemptAt":"2026-10-30T15:47:49.026663+00:00","lastSuccessAt":"2026-10-30T15:47:49.1818062+00:00","error":null,"lastVerifiedAt":"2026-10-30T15:47:49.1818068+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. 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