{"id":"CVE-2026-121209","kind":"vulnerability","aliases":["CVE-2026-121209"],"related":[],"title":"Chrome: crafted HTML page can spoof the address bar","description":"UI misrepresentation in Input in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to spoof address bar via a crafted HTML page. (Chromium security severity: Low)","summary":"A crafted HTML page can make Google Chrome display a misleading address bar, so a visitor may think they are on a different site. The sources rate it Chromium security severity Low and do not describe data theft or code execution.","severity":"low","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browsers","chrome","end-users","runtime"],"not_affected_if":["chrome-up-to-date"],"how_to_check":"- Check the installed Chrome version in Chrome's About page (chrome://settings/help) and compare it with the fixed version below.","fix":"- Google Chrome: move to `157.0.8103.38` or later.","status":"open","published_at":"2026-11-03T21:17:30+00:00","first_seen_at":"2026-11-03T21:19:26+00:00","triaged_at":"2026-11-03T21:22:41+00:00","updated_at":"2026-11-03T21:22:41+00:00","category":"runtime","confidence":0.7,"triage":{"at":"2026-11-03T21:22:41Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome: move to `157.0.8103.38` or later.","reach":"internet","title":"Chrome: crafted HTML page can spoof the address bar","impact":"low","summary":"A crafted HTML page can make Google Chrome display a misleading address bar, so a visitor may think they are on a different site. The sources rate it Chromium security severity Low and do not describe data theft or code execution.","audience":"everyone","category":"runtime","nicknames":[],"who_cares":["chrome","browsers","end-users"],"confidence":0.7,"fix_status":"available","needs_auth":"no","worst_case":"Visitor is shown a misleading address bar and may trust a spoofed site","analyst_note":"","how_to_check":"- Check the installed Chrome version in Chrome's About page (chrome://settings/help) and compare it with the fixed version below.\n- Unknown beyond that; the sources do not give further checks.","plain_action":"Update Google Chrome to version 157.0.8103.38 or later through Chrome's Settings > About Chrome.","needs_analyst":false,"not_affected_if":["chrome-up-to-date"],"who_is_affected":"Anyone running Google Chrome before 157.0.8103.38 who visits a malicious or untrusted web page. The sources do not describe server-side exposure, so the risk is to browser users rather than hosted services.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"low"},"cost_usd":0.000662,"input_tokens":4097,"output_tokens":505,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-121209':12A,15A '-2026':11A,14A '157.0.8103.38':72C 'address':8A,33B,79C 'allow':73C 'attack':76C 'bar':9A,34B,80C 'browser':16B 'chrome':1A,17B,29B,69C 'chromium':50B,86C 'code':61B 'craft':2A,23B,83C 'cve':10A,13A 'data':58B 'describ':57B 'differ':44B 'display':30B 'end':19B 'end-us':18B 'execut':62B 'googl':28B,68C 'html':3A,24B,84C 'input':66C 'low':53B,89C 'make':27B 'may':38B 'mislead':32B 'misrepresent':64C 'page':4A,25B,85C 'prior':70C 'rate':48B 'remot':75C 'runtim':21B 'secur':51B,87C 'sever':52B,88C 'site':45B 'sourc':47B 'spoof':6A,78C 'theft':59B 'think':39B 'ui':63C 'user':20B 'via':81C 'visitor':37B","nicknames":[],"mitigations":[],"who_affected":"Anyone running Google Chrome before 157.0.8103.38 who visits a malicious or untrusted web page. The sources do not describe server-side exposure, so the risk is to browser users rather than hosted services.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"everyone","plain_action":"Update Google Chrome to version 157.0.8103.38 or later through Chrome's Settings > About Chrome.","pkeys":[],"ptokens":[],"labels":["browsers","chrome","endusers","low","runtime"],"campaign_type":null,"first_public_at":"2026-11-03T21:17:30+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-121209","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121209","severity":null,"published_at":"2026-11-03T21:17:30+00:00","modified_at":"2026-11-03T21:17:30+00:00","first_seen_at":"2026-11-03T21:19:26+00:00","fetched_at":"2026-11-03T21:19:26+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"}