{"id":"CVE-2026-125347","kind":"vulnerability","aliases":["CVE-2026-125347"],"related":[],"title":"Chrome: FileSystem authorization flaw lets a crafted page escape the sandbox","description":"Incorrect authorization in FileSystem in Google Chrome prior to 157.0.8103.50 allowed a remote attacker leveraging social engineering to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)","summary":"A flaw in Chrome's FileSystem component lets a crafted HTML page run code outside the browser sandbox when a user is tricked into visiting it. The sources say the fix is in Chrome 157.0.8103.50 and later.","severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browser","chrome","desktop","runtime"],"not_affected_if":["chrome-157.0.8103.50-or-later"],"how_to_check":"- Check the Chrome version: open chrome://settings/help or run `google-chrome --version`\n- Compare the installed version against `157.0.8103.50`","fix":"- Google Chrome: `157.0.8103.50`","status":"open","published_at":"2026-11-10T18:17:34+00:00","first_seen_at":"2026-11-10T18:22:56+00:00","triaged_at":"2026-11-10T18:26:40+00:00","updated_at":"2026-11-10T18:26:40+00:00","category":"runtime","confidence":0.6,"triage":{"at":"2026-11-10T18:26:40Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome: `157.0.8103.50`","reach":"internet","title":"Chrome: FileSystem authorization flaw lets a crafted page escape the sandbox","impact":"high","summary":"A flaw in Chrome's FileSystem component lets a crafted HTML page run code outside the browser sandbox when a user is tricked into visiting it. The sources say the fix is in Chrome 157.0.8103.50 and later.","audience":"everyone","category":"runtime","nicknames":[],"who_cares":["chrome","desktop","browser"],"confidence":0.6,"fix_status":"available","needs_auth":"no","worst_case":"Attacker runs arbitrary code outside the browser sandbox on the user's machine.","analyst_note":"Confirm the fixed Chrome version and Chromium advisory for CVE-2026-125347 at the Chrome releases blog; sources give only the NVD description.","how_to_check":"- Check the Chrome version: open chrome://settings/help or run `google-chrome --version`\n- Compare the installed version against `157.0.8103.50`","plain_action":"Update Google Chrome to version 157.0.8103.50 or later.","product_name":"","needs_analyst":true,"not_affected_if":["chrome-157.0.8103.50-or-later"],"who_is_affected":"Anyone running Google Chrome older than 157.0.8103.50 is exposed when they open a malicious page. Managed fleets and kiosks that pin Chrome versions are affected until updated. Users on current Chrome builds are not affected.","user_interaction":"yes","product_ecosystem":"","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000745,"input_tokens":4544,"output_tokens":581,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-125347':14A,17A '-2026':13A,16A '157.0.8103.50':56B,68C 'allow':69C 'arbitrari':78C 'attack':72C 'author':3A,60C 'browser':18B,38B 'chrome':1A,19B,25B,55B,65C 'chromium':88C 'code':35B,79C 'compon':28B 'craft':7A,31B,85C 'cve':12A,15A 'desktop':20B 'engin':75C 'escap':9A 'execut':77C 'filesystem':2A,27B,62C 'fix':52B 'flaw':4A,23B 'googl':64C 'high':91C 'html':32B,86C 'incorrect':59C 'later':58B 'let':5A,29B 'leverag':73C 'outsid':36B,80C 'page':8A,33B,87C 'prior':66C 'remot':71C 'run':34B 'runtim':21B 'sandbox':11A,39B,82C 'say':50B 'secur':89C 'sever':90C 'social':74C 'sourc':49B 'trick':44B 'user':42B 'via':83C 'visit':46B","nicknames":[],"mitigations":[],"who_affected":"Anyone running Google Chrome older than 157.0.8103.50 is exposed when they open a malicious page. Managed fleets and kiosks that pin Chrome versions are affected until updated. Users on current Chrome builds are not affected.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"everyone","plain_action":"Update Google Chrome to version 157.0.8103.50 or later.","pkeys":[],"ptokens":[],"labels":["browser","chrome","desktop","high","runtime"],"campaign_type":null,"search_a":"'-125347':14A,17A '-2026':13A,16A 'author':3A 'chrome':1A 'craft':7A 'cve':12A,15A 'escap':9A 'filesystem':2A 'flaw':4A 'let':5A 'page':8A 'sandbox':11A","search_b":"'157.0.8103.50':56B 'browser':18B,38B 'chrome':19B,25B,55B 'code':35B 'compon':28B 'craft':31B 'desktop':20B 'filesystem':27B 'fix':52B 'flaw':23B 'html':32B 'later':58B 'let':29B 'outsid':36B 'page':33B 'run':34B 'runtim':21B 'sandbox':39B 'say':50B 'sourc':49B 'trick':44B 'user':42B 'visit':46B","search_c":"'157.0.8103.50':68C 'allow':69C 'arbitrari':78C 'attack':72C 'author':60C 'chrome':65C 'chromium':88C 'code':79C 'craft':85C 'engin':75C 'execut':77C 'filesystem':62C 'googl':64C 'high':91C 'html':86C 'incorrect':59C 'leverag':73C 'outsid':80C 'page':87C 'prior':66C 'remot':71C 'sandbox':82C 'secur':89C 'sever':90C 'social':74C 'via':83C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T18:17:34+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-125347","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-125347","severity":null,"published_at":"2026-11-10T18:17:34+00:00","modified_at":"2026-11-10T18:17:34+00:00","first_seen_at":"2026-11-10T18:22:56+00:00","fetched_at":"2026-11-10T18:22:56+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"}