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{"bugzilla": {"description": "chromium-browser: chromium-browser: Type confusion in ServiceWorker", "id": "2534463", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2534463"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.8", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-843", "details": ["Type confusion in ServiceWorker in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)", "A type confusion flaw was found in the ServiceWorker component of the Chromium browser.\nUpstream bug(s):\nhttps://code.google.com/p/chromium/issues/detail?id=547815507"], "name": "CVE-2026-91709", "public_date": "2026-09-15T20:41:30Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-91709\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-91709\nhttps://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html\nhttps://issues.chromium.org/issues/547815507"], "statement": "Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory.", "threat_severity": "Important"}