{
  "canonical_id": "nextjs--CVE-2021-39178",
  "system_id": "nextjs",
  "display_name": "Next.js",
  "category": "frameworks",
  "advisory_mode": "core",
  "title": "XSS in Image Optimization API for Next.js",
  "summary": "XSS in Image Optimization API for Next.js",
  "published_at": "2021-09-01T18:24:22Z",
  "updated_at": "2026-03-13T22:00:20.154452Z",
  "severity": "low",
  "cvss_score": null,
  "exploit_status": "unknown",
  "source_confidence": "official",
  "official_source_url": "https://github.com/vercel/next.js/security/advisories/GHSA-9gr3-7897-pp7m",
  "secondary_source_urls": [
    "https://nvd.nist.gov/vuln/detail/CVE-2021-39178",
    "https://github.com/vercel/next.js/pull/28620",
    "https://github.com/vercel/next.js/commit/7afc97c5744b38bdf36aa7f87625f438224688aa",
    "https://github.com/vercel/next.js",
    "https://github.com/vercel/next.js/releases/tag/v11.1.1"
  ],
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    "GHSA-9gr3-7897-pp7m"
  ],
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  "ghsa_ids": [
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  "osv_ids": [],
  "affected_versions": [
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  "fixed_versions": [
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  "package_name": "next",
  "render_markdown": true,
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    "proxy-trust-boundary",
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