{
  "canonical_id": "nextjs--CVE-2020-15242",
  "system_id": "nextjs",
  "display_name": "Next.js",
  "category": "frameworks",
  "advisory_mode": "core",
  "title": "Open Redirect in Next.js versions",
  "summary": "### Impact\n\n- **Affected**: Users of Next.js between 9.5.0 and 9.5.3 \n- **Not affected**: Deployments on Vercel ([https://vercel.com](https://vercel.com)) are not affected\n- **Not affected**: Deployments using `next export`\n\nWe recommend everyone to upgrade regardless of whether you can reproduce the issue or not.\n\n### Patches\n\nhttps://github.com/vercel/next.js/releases/tag/v9.5.4\n\n### References\n\nhttps://github.com/vercel/next.js/releases/tag/v9.5.4\n\n",
  "published_at": "2020-10-08T19:28:07Z",
  "updated_at": "2026-03-13T22:14:13.665535Z",
  "severity": "low",
  "cvss_score": 3.1,
  "exploit_status": "unknown",
  "source_confidence": "official",
  "official_source_url": "https://github.com/vercel/next.js/security/advisories/GHSA-x56p-c8cg-q435",
  "secondary_source_urls": [
    "https://nvd.nist.gov/vuln/detail/CVE-2020-15242",
    "https://github.com/vercel/next.js",
    "https://github.com/zeit/next.js/releases/tag/v9.5.4"
  ],
  "aliases": [
    "CVE-2020-15242",
    "GHSA-x56p-c8cg-q435"
  ],
  "cve_ids": [
    "CVE-2020-15242"
  ],
  "ghsa_ids": [
    "GHSA-x56p-c8cg-q435"
  ],
  "osv_ids": [
    "GHSA-x56p-c8cg-q435"
  ],
  "affected_versions": [
    "introduced=9.5.0, fixed<9.5.4"
  ],
  "fixed_versions": [
    "9.5.4"
  ],
  "package_name": "next",
  "render_markdown": true,
  "case_path": "07-framework-security/frameworks/nextjs/cases/nextjs-cve-2020-15242.md",
  "secure_code_topics": [
    "authz-server-side-recheck",
    "proxy-trust-boundary",
    "token-cookie-storage"
  ],
  "status": "generated",
  "triage_reasons": [],
  "metadata": {
    "source_names": [
      "OSV Next.js"
    ],
    "source_kinds": [
      "osv-batch"
    ],
    "candidate_count": 1
  }
}