{"id":"CVE-2026-121094","kind":"vulnerability","aliases":["CVE-2026-121094"],"related":[],"title":"Chrome: V8 type confusion lets a crafted web page run code","description":"Type confusion in V8 in Google Chrome prior to 157.0.8103.38 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 V8, the JavaScript engine in Google Chrome, 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","endpoints","package"],"not_affected_if":["already-updated","non-chrome-browsers"],"how_to_check":"- Open Chrome's version: `chrome://settings/help` or `chrome://version`\n- Compare the installed version with `157.0.8103.38`\n- Check managed fleets for Chrome builds older than `157.0.8103.38`","fix":"- Google Chrome: move to `157.0.8103.38` or later","status":"open","published_at":"2026-11-03T21:17:15+00:00","first_seen_at":"2026-11-03T21:19:13+00:00","triaged_at":"2026-11-03T21:25:27+00:00","updated_at":"2026-11-03T21:25:27+00:00","category":"package","confidence":0.8,"triage":{"at":"2026-11-03T21:25:27Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome: move to `157.0.8103.38` 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 through a crafted HTML page. Chromium rates it High severity.","audience":"everyone","category":"package","nicknames":[],"who_cares":["chrome","browsers","endpoints"],"confidence":0.8,"fix_status":"available","needs_auth":"no","worst_case":"Attacker runs code inside the Chrome sandbox on the visitor's machine","analyst_note":"","how_to_check":"- Open Chrome's version: `chrome://settings/help` or `chrome://version`\n- Compare the installed version with `157.0.8103.38`\n- Check managed fleets for Chrome builds older than `157.0.8103.38`","plain_action":"Update Google Chrome to version 157.0.8103.38 or later, then restart the browser.","needs_analyst":false,"not_affected_if":["already-updated","non-chrome-browsers"],"who_is_affected":"Any device running Google Chrome before 157.0.8103.38 is exposed when it opens a malicious web page. Exploitation needs a visit to a crafted page, with no account required. Users on other browsers built on Chromium may need their own vendor's patch.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000679,"input_tokens":4103,"output_tokens":538,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-121094':14A,17A '-2026':13A,16A '157.0.8103.38':64C 'allow':65C 'arbitrari':39B,71C 'attack':37B,68C 'browser':18B,43B 'bug':25B 'chrome':1A,19B,33B,61C 'chromium':50B,81C 'code':11A,40B,72C 'confus':4A,24B,56C 'craft':7A,47B,78C 'cve':12A,15A 'endpoint':20B 'engin':30B 'execut':70C 'googl':32B,60C 'high':53B,84C 'html':48B,79C 'insid':41B,73C 'javascript':29B 'let':5A,34B 'packag':21B 'page':9A,49B,80C 'prior':62C 'rate':51B 'remot':36B,67C 'run':10A,38B 'sandbox':44B,75C 'secur':82C 'sever':54B,83C 'type':3A,23B,55C 'v8':2A,27B,58C 'via':76C 'web':8A","nicknames":[],"mitigations":[],"who_affected":"Any device running Google Chrome before 157.0.8103.38 is exposed when it opens a malicious web page. Exploitation needs a visit to a crafted page, with no account required. Users on other browsers built on Chromium may need their own vendor's patch.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"everyone","plain_action":"Update Google Chrome to version 157.0.8103.38 or later, then restart the browser.","pkeys":[],"ptokens":[],"labels":["browsers","chrome","endpoints","high","package"],"campaign_type":null,"first_public_at":"2026-11-03T21:17:15+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-121094","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121094","severity":null,"published_at":"2026-11-03T21:17:15+00:00","modified_at":"2026-11-03T21:17:15+00:00","first_seen_at":"2026-11-03T21:19:13+00:00","fetched_at":"2026-11-03T21:19:13+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}