{
  "canonical_id": "nextjs--CVE-2025-57822",
  "system_id": "nextjs",
  "display_name": "Next.js",
  "category": "frameworks",
  "advisory_mode": "core",
  "title": "Next.js Improper Middleware Redirect Handling Leads to SSRF",
  "summary": "A vulnerability in **Next.js Middleware** has been fixed in **v14.2.32** and **v15.4.7**. The issue occurred when request headers were directly passed into `NextResponse.next()`. In self-hosted applications, this could allow Server-Side Request Forgery (SSRF) if certain sensitive headers from the incoming request were reflected back into the response.\n\nAll users implementing custom middleware logic in self-hosted environments are strongly encouraged to upgrade and verify correct usage of the `next()` function.\n\nMore details at [Vercel Changelog](https://vercel.com/changelog/cve-2025-57822)",
  "published_at": "2025-08-29T21:33:09Z",
  "updated_at": "2026-02-04T04:20:45.658010Z",
  "severity": "low",
  "cvss_score": 3.1,
  "exploit_status": "unknown",
  "source_confidence": "official",
  "official_source_url": "https://github.com/vercel/next.js/security/advisories/GHSA-4342-x723-ch2f",
  "secondary_source_urls": [
    "https://nvd.nist.gov/vuln/detail/CVE-2025-57822",
    "https://github.com/vercel/next.js/commit/9c9aaed5bb9338ef31b0517ccf0ab4414f2093d8",
    "https://github.com/vercel/next.js",
    "https://vercel.com/changelog/cve-2025-57822"
  ],
  "aliases": [
    "CVE-2025-57822",
    "GHSA-4342-x723-ch2f"
  ],
  "cve_ids": [
    "CVE-2025-57822"
  ],
  "ghsa_ids": [
    "GHSA-4342-x723-ch2f"
  ],
  "osv_ids": [
    "GHSA-4342-x723-ch2f"
  ],
  "affected_versions": [
    "introduced=0.9.9, fixed<14.2.32",
    "introduced=15.0.0-canary.0, fixed<15.4.7"
  ],
  "fixed_versions": [
    "14.2.32",
    "15.4.7"
  ],
  "package_name": "next",
  "render_markdown": true,
  "case_path": "07-framework-security/frameworks/nextjs/cases/nextjs-cve-2025-57822.md",
  "secure_code_topics": [
    "authz-server-side-recheck",
    "proxy-trust-boundary",
    "token-cookie-storage",
    "ssrf-url-validation"
  ],
  "status": "generated",
  "triage_reasons": [],
  "metadata": {
    "source_names": [
      "OSV Next.js"
    ],
    "source_kinds": [
      "osv-batch"
    ],
    "candidate_count": 1
  }
}