{"id":"CVE-2026-113084","kind":"vulnerability","aliases":["CVE-2026-113084"],"related":[],"title":"Chrome: improper permission input validation lets crafted page run code","description":"Improper input validation in Permissions in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)","summary":"A flaw in how Google Chrome validates input to its Permissions feature lets a remote attacker run arbitrary code outside the browser sandbox. The attack works through a crafted HTML page that a user opens.","severity":"critical","cvss":9.6,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"google chrome","fixed":["156.0.8078.47"],"affected":"< 156.0.8078.47","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["browser","chrome","desktop","runtime"],"not_affected_if":["chrome-already-updated-to-156.0.8078.47-or-later"],"how_to_check":"Check the Chrome version: open chrome://settings/help or run chrome --version and compare with 156.0.8078.47.","fix":"Update Google Chrome to 156.0.8078.47 or later.","status":"open","published_at":"2026-10-20T22:19:00+00:00","first_seen_at":"2026-10-23T21:57:23+00:00","triaged_at":"2026-10-23T22:37:33+00:00","updated_at":"2026-10-23T22:37:33+00:00","category":"runtime","confidence":0.8,"triage":{"at":"2026-10-23T22:37:33Z","model":"claude-haiku-5-5","output":{"fix":"Update Google Chrome to 156.0.8078.47 or later.","reach":"internet","title":"Chrome: improper permission input validation lets crafted page run code","impact":"high","summary":"A flaw in how Google Chrome validates input to its Permissions feature lets a remote attacker run arbitrary code outside the browser sandbox. The attack works through a crafted HTML page that a user opens.","category":"runtime","who_cares":["chrome","desktop","browser"],"confidence":0.8,"needs_auth":"no","worst_case":"Attacker runs code outside the sandbox on the user's machine.","analyst_note":"","how_to_check":"Check the Chrome version: open chrome://settings/help or run chrome --version and compare with 156.0.8078.47.","needs_analyst":false,"not_affected_if":["chrome-already-updated-to-156.0.8078.47-or-later"],"user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"unknown"},"cost_usd":0.000467,"input_tokens":2943,"output_tokens":346,"severity_before":"critical"},"analyst_status":null,"analyst_note":null,"search":"'-113084':13A,16A '-2026':12A,15A '156.0.8078.47':68C 'allow':69C 'arbitrari':40B,76C 'attack':38B,47B,72C 'browser':19B,44B 'chrome':1A,18A,20B,28B,65C 'chromium':86C 'code':10A,41B,77C 'craft':7A,51B,83C 'cve':11A,14A 'desktop':21B 'execut':75C 'featur':34B 'flaw':24B 'googl':27B,64C 'google':17A 'html':52B,84C 'improp':2A,58C 'input':4A,30B,59C 'let':6A,35B 'medium':89C 'open':57B 'outsid':42B,78C 'page':8A,53B,85C 'permiss':3A,33B,62C 'potenti':74C 'prior':66C 'remot':37B,71C 'run':9A,39B 'runtim':22B 'sandbox':45B,80C 'secur':87C 'sever':88C 'user':56B 'valid':5A,29B,60C 'via':81C 'work':48B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:19:00+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","cvss_by":"134c704f-9b21-4f2e-91b3-4a467353bcc0","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-113084","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113084","severity":null,"published_at":"2026-10-20T22:19:00+00:00","modified_at":"2026-10-22T23:18:26+00:00","first_seen_at":"2026-10-23T21:57:23+00:00","fetched_at":"2026-10-23T22:28:59+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"}