Chromium: CVE-2026-78907 Incorrect authorization in WebProtect

{
  "id": "c4c06dd22f25c75036b442484ec46b363b69aac707571ed46f44d624a13edf7f",
  "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-78907",
  "method": "llm",
  "payload": {
    "kind": "other",
    "title": "Chromium: CVE-2026-78907 Incorrect authorization in WebProtect",
    "summary": "The announcement says Chromium addresses CVE-2026-78907 and that Microsoft Edge (Chromium-based) ingests Chromium; it gives no Edge fixed version.",
    "evidence": "Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability.",
    "products": [
      {
        "name": {
          "value": "Chromium",
          "evidence": "Chromium: CVE-2026-78907 Incorrect authorization in WebProtect"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      },
      {
        "name": {
          "value": "Microsoft Edge (Chromium-based)",
          "evidence": "Microsoft Edge (Chromium-based) ingests Chromium"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "fixed_cves": [],
    "related_cves": [
      {
        "value": "CVE-2026-78907",
        "evidence": "Chromium: CVE-2026-78907 Incorrect authorization in WebProtect"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "official-microsoft-security-updates",
  "document_id": 27254,
  "published_at": "2026-08-28T14:00:00+00:00"
}