{"id":"CVE-2026-126905","kind":"vulnerability","aliases":["CVE-2026-126905"],"related":[],"title":"Chrome: incomplete V8 cleanup lets a crafted web page run code","description":"Incomplete cleanup 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":"Google Chrome's V8 JavaScript engine has incomplete cleanup that lets a remote attacker run code inside the browser sandbox when the victim opens a crafted HTML page. Chromium rates it High severity; the sources do not say whether it escapes the sandbox.","severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browser","chrome","desktop","other"],"not_affected_if":["chrome-updated"],"how_to_check":"- Check the Chrome version in the browser's About page or with `google-chrome --version`; versions below `157.0.8103.78` are named as affected.","fix":"- Google Chrome: `157.0.8103.78`","status":"open","published_at":"2026-11-11T23:17:20+00:00","first_seen_at":"2026-11-11T23:29:40+00:00","triaged_at":"2026-11-11T23:31:44+00:00","updated_at":"2026-11-11T23:31:44+00:00","category":"other","confidence":0.75,"triage":{"at":"2026-11-11T23:31:44Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome: `157.0.8103.78`","reach":"internet","title":"Chrome: incomplete V8 cleanup lets a crafted web page run code","impact":"high","summary":"Google Chrome's V8 JavaScript engine has incomplete cleanup that lets a remote attacker run code inside the browser sandbox when the victim opens a crafted HTML page. Chromium rates it High severity; the sources do not say whether it escapes the sandbox.","audience":"everyone","category":"other","nicknames":[],"who_cares":["chrome","browser","desktop"],"confidence":0.75,"fix_status":"available","needs_auth":"no","worst_case":"Attacker runs code inside the browser sandbox via a crafted page","analyst_note":"","how_to_check":"- Check the Chrome version in the browser's About page or with `google-chrome --version`; versions below `157.0.8103.78` are named as affected.","plain_action":"Update Google Chrome to version 157.0.8103.78 or later, then restart the browser.","product_name":"","needs_analyst":false,"not_affected_if":["chrome-updated"],"who_is_affected":"Anyone running Google Chrome before 157.0.8103.78 who opens a malicious or compromised web page is exposed. Managed fleets should check the Chrome version on each machine; the sources do not describe any extra configuration needed.","user_interaction":"yes","product_ecosystem":"","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000714,"input_tokens":4539,"output_tokens":520,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-126905':14A,17A '-2026':13A,16A '157.0.8103.78':73C 'allow':74C 'arbitrari':81C 'attack':34B,77C 'browser':18B,39B 'chrome':1A,19B,22B,70C 'chromium':49B,91C 'cleanup':4A,29B,65C 'code':11A,36B,82C 'craft':7A,46B,88C 'cve':12A,15A 'desktop':20B 'engin':26B 'escap':61B 'execut':80C 'googl':21B,69C 'high':52B,94C 'html':47B,89C 'incomplet':2A,28B,64C 'insid':37B,83C 'javascript':25B 'let':5A,31B 'open':44B 'page':9A,48B,90C 'potenti':79C 'prior':71C 'rate':50B 'remot':33B,76C 'run':10A,35B 'sandbox':40B,63B,85C 'say':58B 'secur':92C 'sever':53B,93C 'sourc':55B 'v8':3A,24B,67C 'via':86C 'victim':43B 'web':8A 'whether':59B","nicknames":[],"mitigations":[],"who_affected":"Anyone running Google Chrome before 157.0.8103.78 who opens a malicious or compromised web page is exposed. Managed fleets should check the Chrome version on each machine; the sources do not describe any extra configuration needed.","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, then restart the browser.","pkeys":[],"ptokens":[],"labels":["browser","chrome","desktop","high","other"],"campaign_type":null,"search_a":"'-126905':14A,17A '-2026':13A,16A 'chrome':1A 'cleanup':4A 'code':11A 'craft':7A 'cve':12A,15A 'incomplet':2A 'let':5A 'page':9A 'run':10A 'v8':3A 'web':8A","search_b":"'attack':34B 'browser':18B,39B 'chrome':19B,22B 'chromium':49B 'cleanup':29B 'code':36B 'craft':46B 'desktop':20B 'engin':26B 'escap':61B 'googl':21B 'high':52B 'html':47B 'incomplet':28B 'insid':37B 'javascript':25B 'let':31B 'open':44B 'page':48B 'rate':50B 'remot':33B 'run':35B 'sandbox':40B,63B 'say':58B 'sever':53B 'sourc':55B 'v8':24B 'victim':43B 'whether':59B","search_c":"'157.0.8103.78':73C 'allow':74C 'arbitrari':81C 'attack':77C 'chrome':70C 'chromium':91C 'cleanup':65C 'code':82C 'craft':88C 'execut':80C 'googl':69C 'high':94C 'html':89C 'incomplet':64C 'insid':83C 'page':90C 'potenti':79C 'prior':71C 'remot':76C 'sandbox':85C 'secur':92C 'sever':93C 'v8':67C 'via':86C","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-2026-126905","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126905","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"}