{"id":"CVE-2026-126874","kind":"vulnerability","aliases":["CVE-2026-126874"],"related":[],"title":"Chrome: V8 type confusion lets a crafted web page run code","description":"Type confusion in V8 in Google Chrome prior to 157.0.8103.78 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)","summary":"A type confusion bug in the V8 JavaScript engine of Google Chrome lets a remote attacker run arbitrary code inside the browser sandbox when a victim opens a crafted HTML page. Chromium rates it High severity.","severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browser","chrome","desktop","runtime"],"not_affected_if":["chrome-up-to-date"],"how_to_check":"- Open Chrome's About page (chrome://settings/help) and read the installed version\n- Compare it with `157.0.8103.78`; anything older is affected","fix":"- Google Chrome: move to `157.0.8103.78` or later","status":"open","published_at":"2026-11-11T23:17:16+00:00","first_seen_at":"2026-11-11T23:29:38+00:00","triaged_at":"2026-11-11T23:32:18+00:00","updated_at":"2026-11-11T23:32:18+00:00","category":"runtime","confidence":0.8,"triage":{"at":"2026-11-11T23:32:18Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome: move to `157.0.8103.78` or later","reach":"internet","title":"Chrome: V8 type confusion lets a crafted web page run code","impact":"high","summary":"A type confusion bug in the V8 JavaScript engine of Google Chrome lets a remote attacker run arbitrary code inside the browser sandbox when a victim opens a crafted HTML page. Chromium rates it High severity.","audience":"everyone","category":"runtime","nicknames":[],"who_cares":["chrome","desktop","browser"],"confidence":0.8,"fix_status":"available","needs_auth":"no","worst_case":"Attacker runs code inside the browser sandbox after a page visit","analyst_note":"","how_to_check":"- Open Chrome's About page (chrome://settings/help) and read the installed version\n- Compare it with `157.0.8103.78`; anything older is affected","plain_action":"Update Google Chrome to version 157.0.8103.78 or later: Chrome menu > Help > About Google Chrome.","product_name":"","needs_analyst":false,"not_affected_if":["chrome-up-to-date"],"who_is_affected":"Anyone running Google Chrome before 157.0.8103.78 who opens untrusted web pages is exposed, since the attack needs only a crafted HTML page. Other Chromium-based browsers that embed the same V8 engine may also be affected, but the sources do not say which ones.","user_interaction":"yes","product_ecosystem":"","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000716,"input_tokens":4531,"output_tokens":526,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-126874':14A,17A '-2026':13A,16A '157.0.8103.78':67C 'allow':68C 'arbitrari':39B,74C 'attack':37B,71C 'browser':18B,43B 'bug':25B 'chrome':1A,19B,33B,64C 'chromium':53B,84C 'code':11A,40B,75C 'confus':4A,24B,59C 'craft':7A,50B,81C 'cve':12A,15A 'desktop':20B 'engin':30B 'execut':73C 'googl':32B,63C 'high':56B,87C 'html':51B,82C 'insid':41B,76C 'javascript':29B 'let':5A,34B 'open':48B 'page':9A,52B,83C 'prior':65C 'rate':54B 'remot':36B,70C 'run':10A,38B 'runtim':21B 'sandbox':44B,78C 'secur':85C 'sever':57B,86C 'type':3A,23B,58C 'v8':2A,28B,61C 'via':79C 'victim':47B 'web':8A","nicknames":[],"mitigations":[],"who_affected":"Anyone running Google Chrome before 157.0.8103.78 who opens untrusted web pages is exposed, since the attack needs only a crafted HTML page. Other Chromium-based browsers that embed the same V8 engine may also be affected, but the sources do not say which ones.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"everyone","plain_action":"Update Google Chrome to version 157.0.8103.78 or later: Chrome menu > Help > About Google Chrome.","pkeys":[],"ptokens":[],"labels":["browser","chrome","desktop","high","runtime"],"campaign_type":null,"search_a":"'-126874':14A,17A '-2026':13A,16A 'chrome':1A 'code':11A 'confus':4A 'craft':7A 'cve':12A,15A 'let':5A 'page':9A 'run':10A 'type':3A 'v8':2A 'web':8A","search_b":"'arbitrari':39B 'attack':37B 'browser':18B,43B 'bug':25B 'chrome':19B,33B 'chromium':53B 'code':40B 'confus':24B 'craft':50B 'desktop':20B 'engin':30B 'googl':32B 'high':56B 'html':51B 'insid':41B 'javascript':29B 'let':34B 'open':48B 'page':52B 'rate':54B 'remot':36B 'run':38B 'runtim':21B 'sandbox':44B 'sever':57B 'type':23B 'v8':28B 'victim':47B","search_c":"'157.0.8103.78':67C 'allow':68C 'arbitrari':74C 'attack':71C 'chrome':64C 'chromium':84C 'code':75C 'confus':59C 'craft':81C 'execut':73C 'googl':63C 'high':87C 'html':82C 'insid':76C 'page':83C 'prior':65C 'remot':70C 'sandbox':78C 'secur':85C 'sever':86C 'type':58C 'v8':61C 'via':79C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-11T23:17:16+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-126874","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126874","severity":null,"published_at":"2026-11-11T23:17:16+00:00","modified_at":"2026-11-11T23:17:16+00:00","first_seen_at":"2026-11-11T23:29:38+00:00","fetched_at":"2026-11-11T23:29:38+00:00","note":null}],"documents":[],"disclosures":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}