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{"bugzilla": {"description": "chromium-browser: Chromium: Arbitrary code execution via use after free vulnerability in WebMCP", "id": "2506637", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2506637"}, "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"}, "details": ["A flaw was found in WebMCP, a component of Google Chrome. This vulnerability, known as a use-after-free, allows a remote attacker to execute arbitrary code within the browser's security sandbox. This can occur when a user visits a specially crafted HTML page, potentially leading to unauthorized control over the affected system."], "name": "CVE-2026-16806", "public_date": "2026-07-23T21:36:43Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-16806\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-16806\nhttps://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_01320465736.html\nhttps://issues.chromium.org/issues/522064153"], "statement": "This vulnerability is rated Important as it allows a remote attacker to achieve arbitrary code execution within the Chromium browser's sandbox. The flaw, a use-after-free in the WebMCP component, is triggered when a user navigates to a specially crafted HTML page, posing a significant risk of unauthorized system control.", "threat_severity": "Important"}