{"id":"CVE-2026-121245","kind":"vulnerability","aliases":["CVE-2026-121245"],"related":[],"title":"Chrome: autofill race condition can leak sensitive data from crafted pages","description":"Race condition in Autofill in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to potentially obtain sensitive information via a crafted HTML page. (Chromium security severity: Medium)","summary":"A race condition in Chrome's Autofill feature, fixed in version 157.0.8103.38, lets a remote attacker trigger the leak of sensitive information through a crafted HTML page. The sources describe the leak only as potential and do not say what data is exposed.","severity":"medium","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browser","chrome","desktop","runtime"],"not_affected_if":["chrome-157.0.8103.38-or-later"],"how_to_check":"- Check the installed Chrome version in the browser's About page or with `google-chrome --version`\n- Compare it against the fixed version `157.0.8103.38`","fix":"- Google Chrome: move to `157.0.8103.38` or later","status":"open","published_at":"2026-11-03T21:17:34+00:00","first_seen_at":"2026-11-03T21:19:29+00:00","triaged_at":"2026-11-03T21:21:04+00:00","updated_at":"2026-11-03T21:21:04+00:00","category":"runtime","confidence":0.6,"triage":{"at":"2026-11-03T21:21:04Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome: move to `157.0.8103.38` or later","reach":"internet","title":"Chrome: autofill race condition can leak sensitive data from crafted pages","impact":"medium","summary":"A race condition in Chrome's Autofill feature, fixed in version 157.0.8103.38, lets a remote attacker trigger the leak of sensitive information through a crafted HTML page. The sources describe the leak only as potential and do not say what data is exposed.","audience":"everyone","category":"runtime","nicknames":[],"who_cares":["chrome","browser","desktop"],"confidence":0.6,"fix_status":"available","needs_auth":"no","worst_case":"attacker reads sensitive autofill data from visited pages","analyst_note":"","how_to_check":"- Check the installed Chrome version in the browser's About page or with `google-chrome --version`\n- Compare it against the fixed version `157.0.8103.38`","plain_action":"Update Google Chrome to version 157.0.8103.38 or later from the browser's About Chrome page.","needs_analyst":false,"not_affected_if":["chrome-157.0.8103.38-or-later"],"who_is_affected":"Anyone running Google Chrome before 157.0.8103.38 who visits a page an attacker can craft or control. Managed fleets that already run the fixed version or newer are not exposed. The sources do not say which Autofill data is at risk.","user_interaction":"yes","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000672,"input_tokens":4099,"output_tokens":525,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-121245':14A,17A '-2026':13A,16A '157.0.8103.38':33B,74C 'allow':75C 'attack':37B,78C 'autofil':2A,28B,68C 'browser':18B 'chrome':1A,19B,26B,71C 'chromium':89C 'condit':4A,24B,66C 'craft':10A,46B,86C 'cve':12A,15A 'data':8A,62B 'describ':51B 'desktop':20B 'expos':64B 'featur':29B 'fix':30B 'googl':70C 'html':47B,87C 'inform':43B,83C 'leak':6A,40B,53B 'let':34B 'medium':92C 'obtain':81C 'page':11A,48B,88C 'potenti':56B,80C 'prior':72C 'race':3A,23B,65C 'remot':36B,77C 'runtim':21B 'say':60B 'secur':90C 'sensit':7A,42B,82C 'sever':91C 'sourc':50B 'trigger':38B 'version':32B 'via':84C","nicknames":[],"mitigations":[],"who_affected":"Anyone running Google Chrome before 157.0.8103.38 who visits a page an attacker can craft or control. Managed fleets that already run the fixed version or newer are not exposed. The sources do not say which Autofill data is at risk.","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 from the browser's About Chrome page.","pkeys":[],"ptokens":[],"labels":["browser","chrome","desktop","medium","runtime"],"campaign_type":null,"first_public_at":"2026-11-03T21:17:34+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-121245","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121245","severity":null,"published_at":"2026-11-03T21:17:34+00:00","modified_at":"2026-11-03T21:17:35+00:00","first_seen_at":"2026-11-03T21:19:29+00:00","fetched_at":"2026-11-03T21:19:29+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"}