Chromium: CVE-2026-84358 Improper privilege management in Downloads

{
  "id": "295981d2517b94bc1cb74510e5370f93a27c415d17112e5adaba144fcfc71ceb",
  "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-84358",
  "method": "llm",
  "payload": {
    "kind": "other",
    "title": "Chromium: CVE-2026-84358 Improper privilege management in Downloads",
    "summary": "The announcement says Chromium addresses CVE-2026-84358 and points to Google Chrome Releases for more information; it provides no Edge fixed version.",
    "evidence": "Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability.",
    "products": [
      {
        "name": {
          "value": "Microsoft Edge (Chromium-based)",
          "evidence": "Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability."
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "fixed_cves": [],
    "related_cves": [
      {
        "value": "CVE-2026-84358",
        "evidence": "Chromium: CVE-2026-84358 Improper privilege management in Downloads"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "official-microsoft-security-updates",
  "document_id": 27196,
  "published_at": "2026-09-08T14:00:00+00:00"
}