{"schemaVersion":3,"id":"CVE-2020-5284","aliases":["GHSA-fq77-7p7r-83rj"],"status":"published","duplicateOf":null,"title":null,"description":"Next.js versions before 9.3.2 have a directory traversal vulnerability. Attackers could craft special requests to access files in the dist directory (.next). This does not affect files outside of the dist directory (.next). In general, the dist directory only holds build assets unless your application intentionally stores other assets under this directory. This issue is fixed in version 9.3.2.","dates":{"published":"2020-03-30T20:40:11.000Z","modified":"2024-08-04T08:22:09.087Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":5,"severity":"medium","version":"2.0","versionLabel":"v2.0","source":"NVD","vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":4.4,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Npm","score":4.4,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N","exploitability":3.3,"impact":4.5,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":4.3,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":5,"severity":"medium","vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.44776,"percentile":0.98761,"severity":"high","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0.44199999999999795,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.44334},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.44776,"percentile":0.98761}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.44334,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.44776,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.44776,"percentile":0.98761}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-23","name":"Relative Path Traversal","description":"The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as \"..\" that can resolve to a location that is outside of that directory.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/23.html"},{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","description":"The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.","type":"weakness","status":"Stable","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/22.html"}],"affected":[{"vendor":"Npm","product":"next","name":"next","label":"next","ecosystem":"Npm","cpePart":null,"purl":"pkg:npm/next","purlType":"npm","versions":[{"text":"≥ 0.9.9, < 9.3.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 0.9.9, < 9.3.2","eol":{"isEol":null,"eolDate":null,"matchMethod":"purl","cycle":null,"product":{"name":"nextjs","label":"Next.js","category":"framework"}},"hubHref":null},{"vendor":"zeit","product":"next.js","name":"next.js","label":"next.js","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 9.3.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 9.3.2","eol":null,"hubHref":"/vendor/zeit/nextjs"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/zeit/next.js/security/advisories/GHSA-fq77-7p7r-83rj","label":"github.com/zeit/next.js/security/advisories/GHSA-fq77-7p7r-83rj","hostname":"github.com","tags":["X Refsource CONFIRM","WEB","Third Party Advisory"]},{"url":"https://github.com/zeit/next.js/releases/tag/v9.3.2","label":"github.com/zeit/next.js/releases/tag/v9.3.2","hostname":"github.com","tags":["X Refsource MISC","WEB","Release Notes"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-5284","label":"nvd.nist.gov/vuln/detail/CVE-2020-5284","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://www.npmjs.com/advisories/1503","label":"www.npmjs.com/advisories/1503","hostname":"www.npmjs.com","tags":["WEB"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2020-03-30T20:40:11.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-04T08:22:09.087Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":29,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T05:52:57.657Z","stale":false,"partial":false}}