{"id":"CVE-2026-121081","kind":"vulnerability","aliases":["CVE-2026-121081"],"related":[],"title":"Chrome: password manager UI misrepresentation leaks sensitive data via social engineering","description":"UI misrepresentation in Passwords in Google Chrome prior to 157.0.8103.38 allowed a remote attacker leveraging social engineering to obtain sensitive information via crafted network traffic. (Chromium security severity: Low)","summary":"A UI misrepresentation flaw in the Passwords feature of Google Chrome, fixed in 157.0.8103.38, lets a remote attacker use social engineering and crafted network traffic to obtain sensitive information. Chromium rates it Low severity.","severity":"low","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["chrome","desktop-browsers","passwords","runtime"],"not_affected_if":["chrome-updated","non-chrome-browsers"],"how_to_check":"- Check the installed Chrome version in Chrome's About page or with the browser's version output.\n- Compare the version against `157.0.8103.38`.","fix":"- Google Chrome: move to `157.0.8103.38` or later.","status":"open","published_at":"2026-11-03T21:17:13+00:00","first_seen_at":"2026-11-03T21:19:12+00:00","triaged_at":"2026-11-03T21:26:48+00:00","updated_at":"2026-11-03T21:26:48+00:00","category":"runtime","confidence":0.7,"triage":{"at":"2026-11-03T21:26:48Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome: move to `157.0.8103.38` or later.","reach":"internet","title":"Chrome: password manager UI misrepresentation leaks sensitive data via social engineering","impact":"low","summary":"A UI misrepresentation flaw in the Passwords feature of Google Chrome, fixed in 157.0.8103.38, lets a remote attacker use social engineering and crafted network traffic to obtain sensitive information. Chromium rates it Low severity.","audience":"everyone","category":"runtime","nicknames":[],"who_cares":["chrome","desktop-browsers","passwords"],"confidence":0.7,"fix_status":"available","needs_auth":"no","worst_case":"attacker obtains sensitive information through a deceptive password UI","analyst_note":"","how_to_check":"- Check the installed Chrome version in Chrome's About page or with the browser's version output.\n- Compare the version against `157.0.8103.38`.","plain_action":"Update Google Chrome to version 157.0.8103.38 or later, then restart the browser.","needs_analyst":false,"not_affected_if":["chrome-updated","non-chrome-browsers"],"who_is_affected":"Anyone running Google Chrome before 157.0.8103.38 who uses the built-in Passwords feature. Exploitation requires the user to be tricked into the attack, so the browser on end-user machines is the exposed system. Chrome installs that auto-update to a fixed build are not exposed once updated.","user_interaction":"yes","needs_special_setup":"unknown","severity_if_unknown":"low"},"cost_usd":0.000685,"input_tokens":4107,"output_tokens":548,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-121081':14A,17A '-2026':13A,16A '157.0.8103.38':37B,67C 'allow':68C 'attack':41B,71C 'browser':21B 'chrome':1A,18B,34B,64C 'chromium':53B,83C 'craft':46B,80C 'cve':12A,15A 'data':8A 'desktop':20B 'desktop-brows':19B 'engin':11A,44B,74C 'featur':31B 'fix':35B 'flaw':27B 'googl':33B,63C 'inform':52B,78C 'leak':6A 'let':38B 'leverag':72C 'low':56B,86C 'manag':3A 'misrepresent':5A,26B,59C 'network':47B,81C 'obtain':50B,76C 'password':2A,22B,30B,61C 'prior':65C 'rate':54B 'remot':40B,70C 'runtim':23B 'secur':84C 'sensit':7A,51B,77C 'sever':57B,85C 'social':10A,43B,73C 'traffic':48B,82C 'ui':4A,25B,58C 'use':42B 'via':9A,79C","nicknames":[],"mitigations":[],"who_affected":"Anyone running Google Chrome before 157.0.8103.38 who uses the built-in Passwords feature. Exploitation requires the user to be tricked into the attack, so the browser on end-user machines is the exposed system. Chrome installs that auto-update to a fixed build are not exposed once updated.","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, then restart the browser.","pkeys":[],"ptokens":[],"labels":["chrome","desktopbrowsers","low","passwords","runtime"],"campaign_type":null,"first_public_at":"2026-11-03T21:17:13+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-121081","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121081","severity":null,"published_at":"2026-11-03T21:17:13+00:00","modified_at":"2026-11-03T21:17:13+00:00","first_seen_at":"2026-11-03T21:19:12+00:00","fetched_at":"2026-11-03T21:19:12+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"}