{"id":"CVE-2026-121195","kind":"vulnerability","aliases":["CVE-2026-121195"],"related":[],"title":"Google Chrome: Trusted Types flaw lets a crafted page bypass origin policy","description":"Incorrect authorization in TrustedTypes in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: Low)","summary":"Google Chrome's Trusted Types feature has an incorrect authorization flaw in versions before 157.0.8103.38. A remote attacker can use a crafted HTML page to bypass the web origin policy.","severity":"low","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browsers","chrome","runtime","web-frontend"],"not_affected_if":["chrome-updated"],"how_to_check":"- Check the installed Chrome version in the browser's About page or run `chrome --version`; versions below `157.0.8103.38` are in scope.","fix":"- Google Chrome: move to `157.0.8103.38` or later.","status":"open","published_at":"2026-11-03T21:17:28+00:00","first_seen_at":"2026-11-03T21:19:25+00:00","triaged_at":"2026-11-03T21:22:56+00:00","updated_at":"2026-11-03T21:22:56+00:00","category":"runtime","confidence":0.7,"triage":{"at":"2026-11-03T21:22:56Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome: move to `157.0.8103.38` or later.","reach":"internet","title":"Google Chrome: Trusted Types flaw lets a crafted page bypass origin policy","impact":"medium","summary":"Google Chrome's Trusted Types feature has an incorrect authorization flaw in versions before 157.0.8103.38. A remote attacker can use a crafted HTML page to bypass the web origin policy.","audience":"everyone","category":"runtime","nicknames":[],"who_cares":["chrome","browsers","web-frontend"],"confidence":0.7,"fix_status":"available","needs_auth":"no","worst_case":"Crafted page bypasses web origin policy in the browser","analyst_note":"","how_to_check":"- Check the installed Chrome version in the browser's About page or run `chrome --version`; versions below `157.0.8103.38` are in scope.","plain_action":"Update Google Chrome to version 157.0.8103.38 or later.","needs_analyst":false,"not_affected_if":["chrome-updated"],"who_is_affected":"Anyone running Google Chrome before 157.0.8103.38 who browses untrusted web pages. Chromium's security severity is rated Low, and the sources do not say whether other Chromium-based browsers are affected.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"low"},"cost_usd":0.000651,"input_tokens":4106,"output_tokens":480,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-121195':15A,18A '-2026':14A,17A '157.0.8103.38':39B,64C 'allow':65C 'attack':42B,68C 'author':34B,56C 'browser':19B 'bypass':10A,50B,70C 'chrome':2A,20B,26B,61C 'chromium':79C 'craft':8A,46B,76C 'cve':13A,16A 'featur':30B 'flaw':5A,35B 'frontend':24B 'googl':1A,25B,60C 'html':47B,77C 'incorrect':33B,55C 'let':6A 'low':82C 'origin':11A,53B,72C 'page':9A,48B,78C 'polici':12A,54B,73C 'prior':62C 'remot':41B,67C 'runtim':21B 'secur':80C 'sever':81C 'trust':3A,28B 'trustedtyp':58C 'type':4A,29B 'use':44B 'version':37B 'via':74C 'web':23B,52B,71C 'web-frontend':22B","nicknames":[],"mitigations":[],"who_affected":"Anyone running Google Chrome before 157.0.8103.38 who browses untrusted web pages. Chromium's security severity is rated Low, and the sources do not say whether other Chromium-based browsers are affected.","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.","pkeys":[],"ptokens":[],"labels":["browsers","chrome","low","runtime","webfrontend"],"campaign_type":null,"first_public_at":"2026-11-03T21:17:28+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-121195","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121195","severity":null,"published_at":"2026-11-03T21:17:28+00:00","modified_at":"2026-11-03T21:17:28+00:00","first_seen_at":"2026-11-03T21:19:25+00:00","fetched_at":"2026-11-03T21:19:25+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"}