{"id":"CVE-2026-126868","kind":"vulnerability","aliases":["CVE-2026-126868"],"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 potentially 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 in Google Chrome before 157.0.8103.78 lets a remote attacker run arbitrary code inside the browser sandbox through a crafted HTML page. Chromium rates it High severity.","severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browsers","chrome","desktop","mobile","runtime"],"not_affected_if":["chrome-at-or-above-157.0.8103.78"],"how_to_check":"- Open Chrome's About page (chrome://version) and read the version number","fix":"- Google Chrome: `157.0.8103.78` or later","status":"open","published_at":"2026-11-11T23:17:15+00:00","first_seen_at":"2026-11-11T23:29:37+00:00","triaged_at":"2026-11-11T23:33:21+00:00","updated_at":"2026-11-11T23:33:21+00:00","category":"runtime","confidence":0.8,"triage":{"at":"2026-11-11T23:33:21Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome: `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 in Google Chrome before 157.0.8103.78 lets a remote attacker run arbitrary code inside the browser sandbox through a crafted HTML page. Chromium rates it High severity.","audience":"everyone","category":"runtime","nicknames":[],"who_cares":["chrome","browsers","desktop","mobile"],"confidence":0.8,"fix_status":"available","needs_auth":"no","worst_case":"attacker runs code inside the browser sandbox via a web page","analyst_note":"","how_to_check":"- Open Chrome's About page (chrome://version) and read the version number\n- unknown","plain_action":"Update Google Chrome to version 157.0.8103.78 or later: open the menu, go to Help > About Google Chrome, and let it install the update.","product_name":"","needs_analyst":false,"not_affected_if":["chrome-at-or-above-157.0.8103.78"],"who_is_affected":"Any user running Google Chrome before 157.0.8103.78 who visits a page an attacker controls. Exploitation requires only loading the crafted HTML page, with no account or extra setup. Chromium-based browsers that pick up the same V8 fix are affected in the same way.","user_interaction":"yes","product_ecosystem":"","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000715,"input_tokens":4531,"output_tokens":523,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-126868':14A,17A '-2026':13A,16A '157.0.8103.78':36B,67C 'allow':68C 'arbitrari':42B,75C 'attack':40B,71C 'browser':18B,46B 'bug':26B 'chrome':1A,19B,34B,64C 'chromium':53B,85C 'code':11A,43B,76C 'confus':4A,25B,59C 'craft':7A,50B,82C 'cve':12A,15A 'desktop':20B 'engin':31B 'execut':74C 'googl':33B,63C 'high':56B,88C 'html':51B,83C 'insid':44B,77C 'javascript':30B 'let':5A,37B 'mobil':21B 'page':9A,52B,84C 'potenti':73C 'prior':65C 'rate':54B 'remot':39B,70C 'run':10A,41B 'runtim':22B 'sandbox':47B,79C 'secur':86C 'sever':57B,87C 'type':3A,24B,58C 'v8':2A,29B,61C 'via':80C 'web':8A","nicknames":[],"mitigations":[],"who_affected":"Any user running Google Chrome before 157.0.8103.78 who visits a page an attacker controls. Exploitation requires only loading the crafted HTML page, with no account or extra setup. Chromium-based browsers that pick up the same V8 fix are affected in the same way.","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: open the menu, go to Help > About Google Chrome, and let it install the update.","pkeys":[],"ptokens":[],"labels":["browsers","chrome","desktop","high","mobile","runtime"],"campaign_type":null,"search_a":"'-126868':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":"'157.0.8103.78':36B 'arbitrari':42B 'attack':40B 'browser':18B,46B 'bug':26B 'chrome':19B,34B 'chromium':53B 'code':43B 'confus':25B 'craft':50B 'desktop':20B 'engin':31B 'googl':33B 'high':56B 'html':51B 'insid':44B 'javascript':30B 'let':37B 'mobil':21B 'page':52B 'rate':54B 'remot':39B 'run':41B 'runtim':22B 'sandbox':47B 'sever':57B 'type':24B 'v8':29B","search_c":"'157.0.8103.78':67C 'allow':68C 'arbitrari':75C 'attack':71C 'chrome':64C 'chromium':85C 'code':76C 'confus':59C 'craft':82C 'execut':74C 'googl':63C 'high':88C 'html':83C 'insid':77C 'page':84C 'potenti':73C 'prior':65C 'remot':70C 'sandbox':79C 'secur':86C 'sever':87C 'type':58C 'v8':61C 'via':80C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-11T23:17:15+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-126868","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126868","severity":null,"published_at":"2026-11-11T23:17:15+00:00","modified_at":"2026-11-11T23:17:15+00:00","first_seen_at":"2026-11-11T23:29:37+00:00","fetched_at":"2026-11-11T23:29:37+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"}