{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-5858", "assignerOrgId": "ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28", "state": "PUBLISHED", "assignerShortName": "Chrome", "dateReserved": "2026-04-08T19:34:31.447Z", "datePublished": "2026-04-08T21:20:38.772Z", "dateUpdated": "2026-04-10T03:55:35.775Z"}, "containers": {"cna": {"affected": [{"vendor": "Google", "product": "Chrome", "versions": [{"version": "147.0.7727.55", "status": "affected", "lessThan": "147.0.7727.55", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "Heap buffer overflow in WebML in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to execute arbitrary code via a crafted HTML page. (Chromium security severity: Critical)"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Heap buffer overflow", "cweId": "CWE-122"}]}], "providerMetadata": {"orgId": "ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28", "shortName": "Chrome", "dateUpdated": "2026-04-08T21:20:38.772Z"}, "references": [{"url": "https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html"}, {"url": "https://issues.chromium.org/issues/493319454"}]}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-04-09T00:00:00+00:00", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-5858"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-10T03:55:35.775Z"}}]}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Heap buffer overflow in WebML in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to execute arbitrary code via a crafted HTML page. (Chromium security severity: Critical)"}], "id": "CVE-2026-5858", "lastModified": "2026-04-08T22:16:25.253", "metrics": {}, "published": "2026-04-08T22:16:25.253", "references": [{"source": "chrome-cve-admin@google.com", "url": "https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html"}, {"source": "chrome-cve-admin@google.com", "url": "https://issues.chromium.org/issues/493319454"}], "sourceIdentifier": "chrome-cve-admin@google.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-122"}], "source": "chrome-cve-admin@google.com", "type": "Primary"}]}

{"bugzilla": {"description": "Google Chrome: WebML: Chromium: Google Chrome: Arbitrary code execution via heap buffer overflow in WebML", "id": "2456793", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2456793"}, "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-131", "details": ["A flaw was found in WebML in Google Chrome. A remote attacker could exploit a heap buffer overflow vulnerability by enticing a user to visit a specially crafted HTML page. Successful exploitation of this memory corruption flaw could allow the attacker to execute arbitrary code on the affected system, leading to a complete compromise."], "name": "CVE-2026-5858", "public_date": "2026-04-08T21:20:38Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-5858\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-5858\nhttps://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html\nhttps://issues.chromium.org/issues/493319454"], "statement": "Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory.", "threat_severity": "Important"}