{"id":"CVE-2026-76026","kind":"vulnerability","aliases":["CVE-2026-76026"],"related":[],"title":"Chrome: memory corruption in Autofill lets a web page run code","description":"Memory corruption in Autofill in Google Chrome prior to 156.0.8078.79 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)","summary":"Google Chrome versions before 156.0.8078.79 have a memory corruption bug in Autofill. A remote attacker who gets a user to open a crafted HTML page can execute arbitrary code inside the browser's sandbox.","severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browser","chrome","linux","macos","other","windows"],"not_affected_if":["chrome-updated"],"how_to_check":"- Check the Chrome version under Help > About Google Chrome; a version below `156.0.8078.79` is affected.","fix":"- Google Chrome: move to `156.0.8078.79` or later.","status":"open","published_at":"2026-10-30T01:16:47+00:00","first_seen_at":"2026-10-30T01:27:59+00:00","triaged_at":"2026-10-30T01:29:47+00:00","updated_at":"2026-10-30T01:29:47+00:00","category":"other","confidence":0.7,"triage":{"at":"2026-10-30T01:29:47Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome: move to `156.0.8078.79` or later.","reach":"internet","title":"Chrome: memory corruption in Autofill lets a web page run code","impact":"high","summary":"Google Chrome versions before 156.0.8078.79 have a memory corruption bug in Autofill. A remote attacker who gets a user to open a crafted HTML page can execute arbitrary code inside the browser's sandbox.","audience":"everyone","category":"other","nicknames":[],"who_cares":["chrome","browser","windows","macos","linux"],"confidence":0.7,"fix_status":"available","needs_auth":"no","worst_case":"Attacker runs code inside the browser sandbox on the user's machine","analyst_note":"","how_to_check":"- Check the Chrome version under Help > About Google Chrome; a version below `156.0.8078.79` is affected.","plain_action":"Update Google Chrome to version 156.0.8078.79 or later: open the menu, choose Help > About Google Chrome, and let it install.","needs_analyst":false,"not_affected_if":["chrome-updated"],"who_is_affected":"Anyone running Google Chrome before 156.0.8078.79 who visits a malicious or compromised web page. Managed fleets should confirm the Chrome version on each machine; the sources do not describe any non-default configuration that is required.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000662,"input_tokens":4106,"output_tokens":502,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2026':13A,16A '-76026':14A,17A '156.0.8078.79':28B,67C 'allow':68C 'arbitrari':51B,74C 'attack':38B,71C 'autofil':5A,35B,61C 'browser':18B,55B 'bug':33B 'chrome':1A,19B,25B,64C 'chromium':84C 'code':11A,52B,75C 'corrupt':3A,32B,59C 'craft':46B,81C 'cve':12A,15A 'execut':50B,73C 'get':40B 'googl':24B,63C 'high':87C 'html':47B,82C 'insid':53B,76C 'let':6A 'linux':20B 'maco':21B 'memori':2A,31B,58C 'open':44B 'page':9A,48B,83C 'prior':65C 'remot':37B,70C 'run':10A 'sandbox':57B,78C 'secur':85C 'sever':86C 'user':42B 'version':26B 'via':79C 'web':8A 'window':23B","nicknames":[],"mitigations":[],"who_affected":"Anyone running Google Chrome before 156.0.8078.79 who visits a malicious or compromised web page. Managed fleets should confirm the Chrome version on each machine; the sources do not describe any non-default configuration that is required.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"everyone","plain_action":"Update Google Chrome to version 156.0.8078.79 or later: open the menu, choose Help > About Google Chrome, and let it install.","first_public_at":"2026-10-30T01:16:47+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-76026","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-76026","severity":null,"published_at":"2026-10-30T01:16:47+00:00","modified_at":"2026-10-30T01:16:47+00:00","first_seen_at":"2026-10-30T01:27:59+00:00","fetched_at":"2026-10-30T01:27:59+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"}