{"id":"CVE-2026-113271","kind":"vulnerability","aliases":["CVE-2026-113271"],"related":[],"title":"Chrome: accessibility use-after-free lets a crafted page run code","description":"Use after free in Accessibility in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Critical)","summary":"A use-after-free in Chrome's Accessibility component lets a remote attacker run arbitrary code inside the browser sandbox through a crafted HTML page. Chrome versions before 156.0.8078.47 are affected.","severity":"high","cvss":8.8,"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":["chrome","linux","macos","other","vendor","windows"],"not_affected_if":["already-on-156.0.8078.47-or-later"],"how_to_check":"Open chrome://version and compare the version to 156.0.8078.47.","fix":"Update Google Chrome to 156.0.8078.47 or later.","status":"open","published_at":"2026-10-20T22:19:20+00:00","first_seen_at":"2026-10-23T21:57:24+00:00","triaged_at":"2026-10-23T22:35:32+00:00","updated_at":"2026-10-23T22:35:32+00:00","category":"vendor","confidence":0.8,"triage":{"at":"2026-10-23T22:35:32Z","model":"claude-haiku-5-5","output":{"fix":"Update Google Chrome to 156.0.8078.47 or later.","reach":"internet","title":"Chrome: accessibility use-after-free lets a crafted page run code","impact":"high","summary":"A use-after-free in Chrome's Accessibility component lets a remote attacker run arbitrary code inside the browser sandbox through a crafted HTML page. Chrome versions before 156.0.8078.47 are affected.","category":"vendor","who_cares":["chrome","windows","macos","linux"],"confidence":0.8,"needs_auth":"no","worst_case":"Attacker runs code inside the browser sandbox after a victim visits a page","analyst_note":"","how_to_check":"Open chrome://version and compare the version to 156.0.8078.47.","needs_analyst":false,"not_affected_if":["already-on-156.0.8078.47-or-later"],"user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000461,"input_tokens":2939,"output_tokens":335,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-113271':15A,18A '-2026':14A,17A '156.0.8078.47':56B,69C 'access':2A,35B,63C 'affect':58B 'allow':70C 'arbitrari':42B,76C 'attack':40B,73C 'browser':46B 'chrome':1A,20A,21B,33B,53B,66C 'chromium':86C 'code':12A,43B,77C 'compon':36B 'craft':9A,50B,83C 'critic':89C 'cve':13A,16A 'execut':75C 'free':6A,31B,61C 'googl':65C 'google':19A 'html':51B,84C 'insid':44B,78C 'let':7A,37B 'linux':22B 'maco':23B 'page':10A,52B,85C 'prior':67C 'remot':39B,72C 'run':11A,41B 'sandbox':47B,80C 'secur':87C 'sever':88C 'use':4A,29B,59C 'use-after-fre':3A,28B 'vendor':25B 'version':54B 'via':81C 'window':26B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:19:20+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cvss_by":"134c704f-9b21-4f2e-91b3-4a467353bcc0","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-113271","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113271","severity":null,"published_at":"2026-10-20T22:19:20+00:00","modified_at":"2026-10-21T17:08:42+00:00","first_seen_at":"2026-10-23T21:57:24+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"}