{"id":"CVE-2026-126908","kind":"vulnerability","aliases":["CVE-2026-126908"],"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 V8, the JavaScript engine in Google Chrome, lets a remote attacker run arbitrary code inside the browser sandbox when the 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","linux","macos","runtime","v8","windows"],"not_affected_if":["chrome-158-or-later","chromium-patched"],"how_to_check":"- Check the Chrome version in the browser's About page; the fixed version is `157.0.8103.78` or later.\n- Run `google-chrome --version` on Linux or check Chrome's version on managed devices.","fix":"- Google Chrome: move to `157.0.8103.78` or later.","status":"open","published_at":"2026-11-11T23:17:20+00:00","first_seen_at":"2026-11-11T23:29:40+00:00","triaged_at":"2026-11-11T23:31:40+00:00","updated_at":"2026-11-11T23:31:40+00:00","category":"runtime","confidence":0.8,"triage":{"at":"2026-11-11T23:31:40Z","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 V8, the JavaScript engine in Google Chrome, lets a remote attacker run arbitrary code inside the browser sandbox when the victim opens a crafted HTML page. Chromium rates it High severity.","audience":"everyone","category":"runtime","nicknames":[],"who_cares":["chrome","browser","v8","windows","macos","linux"],"confidence":0.8,"fix_status":"available","needs_auth":"no","worst_case":"Attacker runs code inside the browser sandbox on the victim's machine.","analyst_note":"","how_to_check":"- Check the Chrome version in the browser's About page; the fixed version is `157.0.8103.78` or later.\n- Run `google-chrome --version` on Linux or check Chrome's version on managed devices.","plain_action":"Update Google Chrome to version 157.0.8103.78 or later: open the menu, choose Help, then About Google Chrome.","product_name":"","needs_analyst":false,"not_affected_if":["chrome-158-or-later","chromium-patched"],"who_is_affected":"Any device running Google Chrome before 157.0.8103.78 is exposed when a user visits a malicious page. Exploitation needs only a visit to a crafted HTML page, with no account or special setting. Chromium-based browsers that ship their own V8 build may need their own updates.","user_interaction":"yes","product_ecosystem":"","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000742,"input_tokens":4531,"output_tokens":578,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-126908':14A,17A '-2026':13A,16A '157.0.8103.78':70C 'allow':71C 'arbitrari':42B,78C 'attack':40B,74C 'browser':18B,46B 'bug':28B 'chrome':1A,19B,36B,67C 'chromium':56B,88C 'code':11A,43B,79C 'confus':4A,27B,62C 'craft':7A,53B,85C 'cve':12A,15A 'engin':33B 'execut':77C 'googl':35B,66C 'high':59B,91C 'html':54B,86C 'insid':44B,80C 'javascript':32B 'let':5A,37B 'linux':20B 'maco':21B 'open':51B 'page':9A,55B,87C 'potenti':76C 'prior':68C 'rate':57B 'remot':39B,73C 'run':10A,41B 'runtim':22B 'sandbox':47B,82C 'secur':89C 'sever':60B,90C 'type':3A,26B,61C 'v8':2A,23B,30B,64C 'via':83C 'victim':50B 'web':8A 'window':24B","nicknames":[],"mitigations":[],"who_affected":"Any device running Google Chrome before 157.0.8103.78 is exposed when a user visits a malicious page. Exploitation needs only a visit to a crafted HTML page, with no account or special setting. Chromium-based browsers that ship their own V8 build may need their own updates.","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, choose Help, then About Google Chrome.","pkeys":[],"ptokens":[],"labels":["browser","chrome","high","linux","macos","runtime","v8","windows"],"campaign_type":null,"search_a":"'-126908':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':42B 'attack':40B 'browser':18B,46B 'bug':28B 'chrome':19B,36B 'chromium':56B 'code':43B 'confus':27B 'craft':53B 'engin':33B 'googl':35B 'high':59B 'html':54B 'insid':44B 'javascript':32B 'let':37B 'linux':20B 'maco':21B 'open':51B 'page':55B 'rate':57B 'remot':39B 'run':41B 'runtim':22B 'sandbox':47B 'sever':60B 'type':26B 'v8':23B,30B 'victim':50B 'window':24B","search_c":"'157.0.8103.78':70C 'allow':71C 'arbitrari':78C 'attack':74C 'chrome':67C 'chromium':88C 'code':79C 'confus':62C 'craft':85C 'execut':77C 'googl':66C 'high':91C 'html':86C 'insid':80C 'page':87C 'potenti':76C 'prior':68C 'remot':73C 'sandbox':82C 'secur':89C 'sever':90C 'type':61C 'v8':64C 'via':83C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-11T23:17:20+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-126908","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126908","severity":null,"published_at":"2026-11-11T23:17:20+00:00","modified_at":"2026-11-11T23:17:20+00:00","first_seen_at":"2026-11-11T23:29:40+00:00","fetched_at":"2026-11-11T23:29:40+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"}