{
  "canonical_id": "nextjs--CVE-2024-56332",
  "system_id": "nextjs",
  "display_name": "Next.js",
  "category": "frameworks",
  "advisory_mode": "core",
  "title": "Next.js Allows a Denial of Service (DoS) with Server Actions",
  "summary": "### Impact\nA Denial of Service (DoS) attack allows attackers to construct requests that leaves requests to Server Actions hanging until the hosting provider cancels the function execution.\n\n_Note: Next.js server is idle during that time and only keeps the connection open. CPU and memory footprint are low during that time._\n\nDeployments without any protection against long running Server Action invocations are especially vulnerable. Hosting providers like Vercel or Netlify set a default maximum duration on function execution to reduce the risk of excessive billing.\n\nThis is the same issue as if the incoming HTTP request has an invalid `Content-Length` header or never closes. If the host has no other mitigations to those then this vulnerability is novel.\n\nThis vulnerability affects only Next.js deployments using Server Actions.\n\n### Patches\n\nThis vulnerability was resolved in Next.js 14.2.21, 15.1.2, and 13.5.8. We recommend that users upgrade to a safe version.\n\n### Workarounds\n\nThere are no official workarounds for this vulnerability.\n\n### Credits\n\nThanks to the PackDraw team for responsibly disclosing this vulnerability.",
  "published_at": "2025-01-03T20:19:29Z",
  "updated_at": "2026-02-04T04:36:04.252972Z",
  "severity": "low",
  "cvss_score": 3.1,
  "exploit_status": "unknown",
  "source_confidence": "official",
  "official_source_url": "https://github.com/vercel/next.js/security/advisories/GHSA-7m27-7ghc-44w9",
  "secondary_source_urls": [
    "https://nvd.nist.gov/vuln/detail/CVE-2024-56332",
    "https://github.com/vercel/next.js"
  ],
  "aliases": [
    "CVE-2024-56332",
    "GHSA-7m27-7ghc-44w9"
  ],
  "cve_ids": [
    "CVE-2024-56332"
  ],
  "ghsa_ids": [
    "GHSA-7m27-7ghc-44w9"
  ],
  "osv_ids": [
    "GHSA-7m27-7ghc-44w9"
  ],
  "affected_versions": [
    "introduced=13.0.0, fixed<13.5.8",
    "introduced=14.0.0, fixed<14.2.21",
    "introduced=15.0.0, fixed<15.1.2"
  ],
  "fixed_versions": [
    "13.5.8",
    "14.2.21",
    "15.1.2"
  ],
  "package_name": "next",
  "render_markdown": true,
  "case_path": "07-framework-security/frameworks/nextjs/cases/nextjs-cve-2024-56332.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
  }
}