{
  "canonical_id": "nextjs--CVE-2020-5284",
  "system_id": "nextjs",
  "display_name": "Next.js",
  "category": "frameworks",
  "advisory_mode": "core",
  "title": "Directory Traversal in Next.js",
  "summary": "### Impact\n\n- **Not affected**: Deployments on ZEIT Now v2 ([https://zeit.co](https://zeit.co/)) are not affected\n- **Not affected**: Deployments using the `serverless` target\n- **Not affected**: Deployments using `next export`\n- **Affected**: Users of Next.js below 9.3.2\n\nWe recommend everyone to upgrade regardless of whether you can reproduce the issue or not.\n\n### Patches\n\nhttps://github.com/zeit/next.js/releases/tag/v9.3.2\n\n### References\n\nhttps://github.com/zeit/next.js/releases/tag/v9.3.2",
  "published_at": "2020-03-30T20:40:50Z",
  "updated_at": "2025-09-26T17:49:56Z",
  "severity": "low",
  "cvss_score": 3.1,
  "exploit_status": "unknown",
  "source_confidence": "official",
  "official_source_url": "https://github.com/zeit/next.js/security/advisories/GHSA-fq77-7p7r-83rj",
  "secondary_source_urls": [
    "https://nvd.nist.gov/vuln/detail/CVE-2020-5284",
    "https://github.com/zeit/next.js/releases/tag/v9.3.2",
    "https://www.npmjs.com/advisories/1503"
  ],
  "aliases": [
    "CVE-2020-5284",
    "GHSA-fq77-7p7r-83rj"
  ],
  "cve_ids": [
    "CVE-2020-5284"
  ],
  "ghsa_ids": [
    "GHSA-fq77-7p7r-83rj"
  ],
  "osv_ids": [
    "GHSA-fq77-7p7r-83rj"
  ],
  "affected_versions": [
    "introduced=0.9.9, fixed<9.3.2"
  ],
  "fixed_versions": [
    "9.3.2"
  ],
  "package_name": "next",
  "render_markdown": true,
  "case_path": "07-framework-security/frameworks/nextjs/cases/nextjs-cve-2020-5284.md",
  "secure_code_topics": [
    "authz-server-side-recheck",
    "proxy-trust-boundary",
    "token-cookie-storage",
    "path-traversal-guard"
  ],
  "status": "generated",
  "triage_reasons": [],
  "verification_status": "verified-real",
  "verification_mode": "real",
  "last_verified_at": "2026-03-18T03:56:28+00:00",
  "last_run_id": "nextjs-nextjs--CVE-2020-5284-20260318035622",
  "evidence_bundle": "/Users/x/websafe/06-case-studies/generated-runs/nextjs-nextjs--CVE-2020-5284-20260318035622",
  "historical_status": "verified-real",
  "latest_status": "verified-real",
  "browser_evidence": {
    "required": false,
    "present": true,
    "refs": [
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    ]
  },
  "repro_profile_id": "nextjs-proxy-boundary",
  "artifact_mode": "local-fixture",
  "blocked_reason": null,
  "metadata": {
    "source_names": [
      "OSV Next.js"
    ],
    "source_kinds": [
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    "candidate_count": 1
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}