Chromium CVE-2026-87506: Privilege elevation in WebUI

{
  "id": "54c591551af41be0ed5efd1f10a36a4964fce1abf9bded0d1fdfd52085d030d9",
  "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-87506",
  "method": "llm",
  "payload": {
    "kind": "other",
    "title": "Chromium CVE-2026-87506: Privilege elevation in WebUI",
    "summary": "The announcement says Chromium addresses a privilege-elevation vulnerability and points to Google Chrome Releases for more information; it does not state a Microsoft 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-2026-87506",
        "evidence": "Chromium CVE-2026-87506: Privilege elevation in WebUI"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "official-microsoft-security-updates",
  "document_id": 26211,
  "published_at": "2026-09-15T00:52:34+00:00"
}