{"id":"CVE-2026-121121","kind":"vulnerability","aliases":["CVE-2026-121121"],"related":[],"title":"Chrome: PageInfo dialog can be spoofed by a crafted web page","description":"UI misrepresentation in PageInfo in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to spoof UI elements via a crafted HTML page. (Chromium security severity: Low)","summary":"A crafted HTML page can make the PageInfo panel in Google Chrome show misleading UI elements. An attacker could use this to make a fake site look trusted to the user.","severity":"low","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browsers","chrome","endpoints","runtime"],"not_affected_if":["chrome-updated"],"how_to_check":"- Check the Chrome version under Chrome menu > Help > About Google Chrome, or run `chrome://version` in the address bar.\n- Compare against the fixed version `157.0.8103.38`.","fix":"- Google Chrome: update to `157.0.8103.38` or later.","status":"open","published_at":"2026-11-03T21:17:20+00:00","first_seen_at":"2026-11-03T21:19:19+00:00","triaged_at":"2026-11-03T21:24:58+00:00","updated_at":"2026-11-03T21:24:58+00:00","category":"runtime","confidence":0.7,"triage":{"at":"2026-11-03T21:24:58Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome: update to `157.0.8103.38` or later.","reach":"internet","title":"Chrome: PageInfo dialog can be spoofed by a crafted web page","impact":"low","summary":"A crafted HTML page can make the PageInfo panel in Google Chrome show misleading UI elements. An attacker could use this to make a fake site look trusted to the user.","audience":"everyone","category":"runtime","nicknames":[],"who_cares":["chrome","browsers","endpoints"],"confidence":0.7,"fix_status":"available","needs_auth":"no","worst_case":"Attacker spoofs browser UI elements to mislead a user about a site","analyst_note":"","how_to_check":"- Check the Chrome version under Chrome menu > Help > About Google Chrome, or run `chrome://version` in the address bar.\n- Compare against the fixed version `157.0.8103.38`.","plain_action":"Update Google Chrome to version 157.0.8103.38 or later: Chrome menu > Help > About Google Chrome.","needs_analyst":false,"not_affected_if":["chrome-updated"],"who_is_affected":"Anyone running Google Chrome before 157.0.8103.38 who visits untrusted web pages. Managed fleets should check Chrome versions across devices. Users on other browsers are not affected by this entry.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"low"},"cost_usd":0.000661,"input_tokens":4103,"output_tokens":501,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-121121':14A,17A '-2026':13A,16A '157.0.8103.38':62C 'allow':63C 'attack':39B,66C 'browser':18B 'chrome':1A,19B,33B,59C 'chromium':76C 'could':40B 'craft':9A,23B,73C 'cve':12A,15A 'dialog':3A 'element':37B,70C 'endpoint':20B 'fake':46B 'googl':32B,58C 'html':24B,74C 'look':48B 'low':79C 'make':27B,44B 'mislead':35B 'misrepresent':54C 'page':11A,25B,75C 'pageinfo':2A,29B,56C 'panel':30B 'prior':60C 'remot':65C 'runtim':21B 'secur':77C 'sever':78C 'show':34B 'site':47B 'spoof':6A,68C 'trust':49B 'ui':36B,53C,69C 'use':41B 'user':52B 'via':71C 'web':10A","nicknames":[],"mitigations":[],"who_affected":"Anyone running Google Chrome before 157.0.8103.38 who visits untrusted web pages. Managed fleets should check Chrome versions across devices. Users on other browsers are not affected by this entry.","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: Chrome menu > Help > About Google Chrome.","pkeys":[],"ptokens":[],"labels":["browsers","chrome","endpoints","low","runtime"],"campaign_type":null,"first_public_at":"2026-11-03T21:17:20+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-121121","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121121","severity":null,"published_at":"2026-11-03T21:17:20+00:00","modified_at":"2026-11-03T21:17:20+00:00","first_seen_at":"2026-11-03T21:19:19+00:00","fetched_at":"2026-11-03T21:19:19+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"}