{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-16806", "assignerOrgId": "ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28", "state": "PUBLISHED", "assignerShortName": "Chrome", "dateReserved": "2026-07-23T20:51:37.592Z", "datePublished": "2026-07-23T21:36:43.664Z", "dateUpdated": "2026-07-25T03:55:16.640Z"}, "containers": {"cna": {"affected": [{"vendor": "Google", "product": "Chrome", "versions": [{"version": "150.0.7871.186", "status": "affected", "lessThan": "150.0.7871.186", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "Use after free in WebMCP in Google Chrome prior to 150.0.7871.186 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Use after free", "cweId": "CWE-416"}]}], "providerMetadata": {"orgId": "ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28", "shortName": "Chrome", "dateUpdated": "2026-07-23T21:36:43.664Z"}, "references": [{"url": "https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_01320465736.html"}, {"url": "https://issues.chromium.org/issues/522064153"}]}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-07-24T00:00:00+00:00", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-16806"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-25T03:55:16.640Z"}}]}}

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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"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[150.0.7871.186,150.0.7871.186)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Chrome", "source": "cna", "vendor": "Google"}, "product": "chrome", "vendor": "google"}], "created": "2026-07-23T23:30:17.472262+00:00", "updated": "2026-08-03T21:00:12.544584+00:00", "vendors": ["google", "google$PRODUCT$chrome"]}