{"id":"CVE-2026-126843","kind":"vulnerability","aliases":["CVE-2026-126843"],"related":[],"title":"Chrome: type confusion in Turbolev lets a crafted page run code","description":"Type confusion in Turbolev 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 flaw in Turbolev, the JavaScript optimizing compiler inside Google Chrome, lets a crafted HTML page make the browser run code inside its sandbox. Chromium rates the flaw High severity.","severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browsers","chrome","chromium","desktop","runtime"],"not_affected_if":["chrome-at-or-above-157.0.8103.78"],"how_to_check":"- Open Chrome and check the version under Settings > About Chrome, or run `google-chrome --version` on Linux.\n- Compare the installed version with `157.0.8103.78`; anything older is exposed.","fix":"- Google Chrome: move to `157.0.8103.78` or later.","status":"open","published_at":"2026-11-11T23:17:12+00:00","first_seen_at":"2026-11-11T23:29:35+00:00","triaged_at":"2026-11-11T23:33:47+00:00","updated_at":"2026-11-11T23:33:47+00:00","category":"runtime","confidence":0.6,"triage":{"at":"2026-11-11T23:33:47Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome: move to `157.0.8103.78` or later.","reach":"internet","title":"Chrome: type confusion in Turbolev lets a crafted page run code","impact":"high","summary":"A type confusion flaw in Turbolev, the JavaScript optimizing compiler inside Google Chrome, lets a crafted HTML page make the browser run code inside its sandbox. Chromium rates the flaw High severity.","audience":"everyone","category":"runtime","nicknames":[],"who_cares":["chrome","browsers","desktop","chromium"],"confidence":0.6,"fix_status":"available","needs_auth":"no","worst_case":"Attacker runs code inside the browser sandbox after a victim visits a page","analyst_note":"","how_to_check":"- Open Chrome and check the version under Settings > About Chrome, or run `google-chrome --version` on Linux.\n- Compare the installed version with `157.0.8103.78`; anything older is exposed.","plain_action":"Update Google Chrome to version 157.0.8103.78 or later: open Chrome's menu, choose Help > About Google Chrome, and let it install.","product_name":"","needs_analyst":false,"not_affected_if":["chrome-at-or-above-157.0.8103.78"],"who_is_affected":"Anyone running Google Chrome before 157.0.8103.78 who opens a malicious or compromised web page is exposed. Chromium-based browsers that pull Chromium's fixes later may also be affected; the sources do not say which. Systems that never run a browser with untrusted pages can skip it.","user_interaction":"yes","product_ecosystem":"","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000749,"input_tokens":4534,"output_tokens":591,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-126843':14A,17A '-2026':13A,16A '157.0.8103.78':64C 'allow':65C 'arbitrari':71C 'attack':68C 'browser':18B,43B 'chrome':1A,19B,35B,61C 'chromium':20B,49B,81C 'code':11A,45B,72C 'compil':32B 'confus':3A,25B,56C 'craft':8A,38B,78C 'cve':12A,15A 'desktop':21B 'execut':70C 'flaw':26B,52B 'googl':34B,60C 'high':53B,84C 'html':39B,79C 'insid':33B,46B,73C 'javascript':30B 'let':6A,36B 'make':41B 'optim':31B 'page':9A,40B,80C 'prior':62C 'rate':50B 'remot':67C 'run':10A,44B 'runtim':22B 'sandbox':48B,75C 'secur':82C 'sever':54B,83C 'turbolev':5A,28B,58C 'type':2A,24B,55C 'via':76C","nicknames":[],"mitigations":[],"who_affected":"Anyone running Google Chrome before 157.0.8103.78 who opens a malicious or compromised web page is exposed. Chromium-based browsers that pull Chromium's fixes later may also be affected; the sources do not say which. Systems that never run a browser with untrusted pages can skip it.","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 Chrome's menu, choose Help > About Google Chrome, and let it install.","pkeys":[],"ptokens":[],"labels":["browsers","chrome","chromium","desktop","high","runtime"],"campaign_type":null,"search_a":"'-126843':14A,17A '-2026':13A,16A 'chrome':1A 'code':11A 'confus':3A 'craft':8A 'cve':12A,15A 'let':6A 'page':9A 'run':10A 'turbolev':5A 'type':2A","search_b":"'browser':18B,43B 'chrome':19B,35B 'chromium':20B,49B 'code':45B 'compil':32B 'confus':25B 'craft':38B 'desktop':21B 'flaw':26B,52B 'googl':34B 'high':53B 'html':39B 'insid':33B,46B 'javascript':30B 'let':36B 'make':41B 'optim':31B 'page':40B 'rate':50B 'run':44B 'runtim':22B 'sandbox':48B 'sever':54B 'turbolev':28B 'type':24B","search_c":"'157.0.8103.78':64C 'allow':65C 'arbitrari':71C 'attack':68C 'chrome':61C 'chromium':81C 'code':72C 'confus':56C 'craft':78C 'execut':70C 'googl':60C 'high':84C 'html':79C 'insid':73C 'page':80C 'prior':62C 'remot':67C 'sandbox':75C 'secur':82C 'sever':83C 'turbolev':58C 'type':55C 'via':76C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-11T23:17:12+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-126843","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126843","severity":null,"published_at":"2026-11-11T23:17:12+00:00","modified_at":"2026-11-11T23:17:12+00:00","first_seen_at":"2026-11-11T23:29:35+00:00","fetched_at":"2026-11-11T23:29:35+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"}