{"id":"CVE-2026-126903","kind":"vulnerability","aliases":["CVE-2026-126903"],"related":[],"title":"Chrome on Windows: crafted web page can bypass origin policy","description":"Improper state validation in ANGLE in Google Chrome on on Windows prior to 157.0.8103.78 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: High)","summary":"Google Chrome on Windows has an improper state validation flaw in its ANGLE graphics layer. A remote attacker can bypass web origin policy using a crafted HTML page.","severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browser","chrome","runtime","windows"],"not_affected_if":["chrome-updated","non-windows-platform"],"how_to_check":"- Check the Chrome version in Chrome's About page or run `chrome://version`\n- Confirm the installed version is below `157.0.8103.78`","fix":"- Google Chrome on Windows: move to `157.0.8103.78` or later","status":"open","published_at":"2026-11-11T23:17:20+00:00","first_seen_at":"2026-11-11T23:29:40+00:00","triaged_at":"2026-11-11T23:31:46+00:00","updated_at":"2026-11-11T23:31:46+00:00","category":"runtime","confidence":0.6,"triage":{"at":"2026-11-11T23:31:46Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome on Windows: move to `157.0.8103.78` or later","reach":"internet","title":"Chrome on Windows: crafted web page can bypass origin policy","impact":"medium","summary":"Google Chrome on Windows has an improper state validation flaw in its ANGLE graphics layer. A remote attacker can bypass web origin policy using a crafted HTML page.","audience":"everyone","category":"runtime","nicknames":[],"who_cares":["chrome","windows","browser"],"confidence":0.6,"fix_status":"available","needs_auth":"no","worst_case":"attacker bypasses web origin policy from a crafted page","analyst_note":"","how_to_check":"- Check the Chrome version in Chrome's About page or run `chrome://version`\n- Confirm the installed version is below `157.0.8103.78`","plain_action":"Update Google Chrome on Windows to version 157.0.8103.78 or later.","product_name":"","needs_analyst":false,"not_affected_if":["non-windows-platform","chrome-updated"],"who_is_affected":"Windows users of Google Chrome before 157.0.8103.78. Exposure comes from simply visiting a crafted web page, so any browsing machine running an older build is in scope. Managed fleets can check the Chrome version centrally.","user_interaction":"yes","product_ecosystem":"","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000694,"input_tokens":4531,"output_tokens":481,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-126903':13A,16A '-2026':12A,15A '157.0.8103.78':62C 'allow':63C 'angl':33B,53C 'attack':38B,66C 'browser':17B 'bypass':8A,40B,68C 'chrome':1A,18B,22B,56C 'chromium':77C 'craft':4A,46B,74C 'cve':11A,14A 'flaw':30B 'googl':21B,55C 'graphic':34B 'high':80C 'html':47B,75C 'improp':27B,49C 'layer':35B 'origin':9A,42B,70C 'page':6A,48B,76C 'polici':10A,43B,71C 'prior':60C 'remot':37B,65C 'runtim':19B 'secur':78C 'sever':79C 'state':28B,50C 'use':44B 'valid':29B,51C 'via':72C 'web':5A,41B,69C 'window':3A,20B,24B,59C","nicknames":[],"mitigations":[],"who_affected":"Windows users of Google Chrome before 157.0.8103.78. Exposure comes from simply visiting a crafted web page, so any browsing machine running an older build is in scope. Managed fleets can check the Chrome version centrally.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"everyone","plain_action":"Update Google Chrome on Windows to version 157.0.8103.78 or later.","pkeys":[],"ptokens":[],"labels":["browser","chrome","high","runtime","windows"],"campaign_type":null,"search_a":"'-126903':13A,16A '-2026':12A,15A 'bypass':8A 'chrome':1A 'craft':4A 'cve':11A,14A 'origin':9A 'page':6A 'polici':10A 'web':5A 'window':3A","search_b":"'angl':33B 'attack':38B 'browser':17B 'bypass':40B 'chrome':18B,22B 'craft':46B 'flaw':30B 'googl':21B 'graphic':34B 'html':47B 'improp':27B 'layer':35B 'origin':42B 'page':48B 'polici':43B 'remot':37B 'runtim':19B 'state':28B 'use':44B 'valid':29B 'web':41B 'window':20B,24B","search_c":"'157.0.8103.78':62C 'allow':63C 'angl':53C 'attack':66C 'bypass':68C 'chrome':56C 'chromium':77C 'craft':74C 'googl':55C 'high':80C 'html':75C 'improp':49C 'origin':70C 'page':76C 'polici':71C 'prior':60C 'remot':65C 'secur':78C 'sever':79C 'state':50C 'valid':51C 'via':72C 'web':69C 'window':59C","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-2026-126903","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126903","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"}