{"id":"EM-20261103-49AY","url":"https://cyber.eventmonitor.net/incident/EM-20261103-49AY/","type":"cve","title":"Google Chrome Vulnerability (CVE-2026-121251)","subtitle":"CVE-2026-121251","subject":"CVE-2026-121251","status":"Developing","severity":"high","affected":[],"headline":null,"born":"2026-11-03T21:17:35.797Z","firstSignal":"2026-11-03T20:42:58.000Z","lastSignal":"2026-11-03T21:17:35.797Z","updated":"2026-11-05T01:06:50.406Z","revision":1,"life":[{"status":"Born","at":"2026-11-03T21:17:35.797Z","why":"second independent source: C6 NVD CVE API 2.0"},{"status":"Developing","at":"2026-11-03T21:17:35.797Z","why":"signals keep joining"}],"changeLog":[{"at":"2026-11-03T20:42:58.000Z","what":"First signal: C41 Red Hat Security Data"},{"at":"2026-11-03T21:17:35.797Z","what":"Born: second source, C6 NVD CVE API 2.0. Page EM-20261103-49AY created."},{"at":"2026-11-03T21:17:35.797Z","what":"Severity raised to High by C6"}],"stages":[{"name":"Disclosed","at":"2026-11-03T21:17:35.797Z","detail":"C6 NVD published"},{"name":"Scored","at":"2026-11-03T21:17:35.797Z","detail":"CVSS 8.8 · EPSS 0.2%"},{"name":"Exploited","at":null,"detail":"No exploitation reported"},{"name":"Advisories","at":null,"detail":"None yet"},{"name":"Vendor Response","at":"2026-11-03T20:42:58.000Z","detail":"C41 published"},{"name":"Resolved","at":null,"detail":"After 14 quiet days"}],"signals":[{"at":"2026-11-03T20:42:58.000Z","source":"C41","sourceName":"Red Hat Security Data","role":"Vendor","severity":1,"title":"Red Hat: CVE-2026-121251 (low)","text":"chromium-browser: Missing authorization in V8","url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-121251.json"},{"at":"2026-11-03T21:17:35.797Z","source":"C6","sourceName":"NVD CVE API 2.0","role":"Database","severity":3,"title":"CVE-2026-121251 (CVSS 8.8)","text":"Missing authorization in V8 in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: Low)","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121251"}],"crowd":[],"reference":{"nvd":{"published":"2026-11-03T21:17:35.797","score":8.8,"severity":"HIGH","desc":"Missing authorization in V8 in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: Low)","product":"","seen":1793837141981},"kev":null,"epss":{"epss":0.002,"pct":0.09934,"at":1793830001890},"p0":false},"mergedInto":null,"publisher":"Event Monitor Cyber"}