{"id":"CVE-2026-113191","kind":"vulnerability","aliases":["CVE-2026-113191"],"related":[],"title":"Chrome on Mac: use-after-free lets a web page run code in sandbox","description":"Use after free in Internals in Google Chrome on on Mac 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: Medium)","summary":"A use-after-free bug in the Internals component of Google Chrome on macOS lets a remote attacker run arbitrary code inside the browser sandbox. The attack works through a crafted HTML page that a user opens.","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":["browser","chrome","macos","runtime","vendor"],"not_affected_if":["chrome-already-updated","non-mac-platforms"],"how_to_check":"In Chrome, open chrome://settings/help and read the version; anything below 156.0.8078.47 is affected.","fix":"Update Google Chrome on Mac to 156.0.8078.47 or later.","status":"open","published_at":"2026-10-20T22:19:11+00:00","first_seen_at":"2026-10-23T21:57:24+00:00","triaged_at":"2026-10-23T22:36:21+00:00","updated_at":"2026-10-23T22:36:21+00:00","category":"vendor","confidence":0.8,"triage":{"at":"2026-10-23T22:36:21Z","model":"claude-haiku-5-5","output":{"fix":"Update Google Chrome on Mac to 156.0.8078.47 or later.","reach":"internet","title":"Chrome on Mac: use-after-free lets a web page run code in sandbox","impact":"medium","summary":"A use-after-free bug in the Internals component of Google Chrome on macOS lets a remote attacker run arbitrary code inside the browser sandbox. The attack works through a crafted HTML page that a user opens.","category":"vendor","who_cares":["chrome","macos"],"confidence":0.8,"needs_auth":"no","worst_case":"Attacker runs code inside the browser sandbox after a user visits a page","analyst_note":"","how_to_check":"In Chrome, open chrome://settings/help and read the version; anything below 156.0.8078.47 is affected.","needs_analyst":false,"not_affected_if":["chrome-already-updated","non-mac-platforms"],"user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"unknown"},"cost_usd":0.000469,"input_tokens":2944,"output_tokens":349,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-113191':18A,21A '-2026':17A,20A '156.0.8078.47':80C 'allow':81C 'arbitrari':49B,87C 'attack':47B,56B,84C 'browser':24B,53B 'bug':34B 'chrome':1A,23A,25B,41B,74C 'chromium':97C 'code':13A,50B,88C 'compon':38B 'craft':60B,94C 'cve':16A,19A 'execut':86C 'free':7A,33B,69C 'googl':40B,73C 'google':22A 'html':61B,95C 'insid':51B,89C 'intern':37B,71C 'let':8A,44B 'mac':3A,77C 'maco':26B,43B 'medium':100C 'open':66B 'page':11A,62B,96C 'prior':78C 'remot':46B,83C 'run':12A,48B 'runtim':27B 'sandbox':15A,54B,91C 'secur':98C 'sever':99C 'use':5A,31B,67C 'use-after-fre':4A,30B 'user':65B 'vendor':28B 'via':92C 'web':10A 'work':57B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:19:11+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-2026-113191","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113191","severity":null,"published_at":"2026-10-20T22:19:11+00:00","modified_at":"2026-10-22T15:23:16+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"}