{"id":"CVE-2026-113056","kind":"vulnerability","aliases":["CVE-2026-113056"],"related":[],"title":"Chrome: memory corruption in PerformanceAPIs lets a web page run code","description":"Memory corruption in PerformanceAPIs 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: Low)","summary":"Google Chrome before 156.0.8078.47 has a memory corruption bug in its PerformanceAPIs code. A remote attacker can serve a crafted HTML page to potentially run arbitrary code outside the browser sandbox.","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","linux","macos","package","runtime","windows"],"not_affected_if":["already-on-156.0.8078.47-or-later"],"how_to_check":"Open chrome://settings/help and read the installed version; anything below 156.0.8078.47 is exposed.","fix":"Update Google Chrome to 156.0.8078.47 or later and restart the browser.","status":"open","published_at":"2026-10-20T22:18:56+00:00","first_seen_at":"2026-10-23T21:57:23+00:00","triaged_at":"2026-10-23T22:37:50+00:00","updated_at":"2026-10-23T22:37:50+00:00","category":"package","confidence":0.8,"triage":{"at":"2026-10-23T22:37:50Z","model":"claude-haiku-5-5","output":{"fix":"Update Google Chrome to 156.0.8078.47 or later and restart the browser.","reach":"internet","title":"Chrome: memory corruption in PerformanceAPIs lets a web page run code","impact":"high","summary":"Google Chrome before 156.0.8078.47 has a memory corruption bug in its PerformanceAPIs code. A remote attacker can serve a crafted HTML page to potentially run arbitrary code outside the browser sandbox.","category":"package","who_cares":["chrome","windows","macos","linux","desktop"],"confidence":0.8,"needs_auth":"no","worst_case":"Attacker code runs outside the sandbox on the user's machine after visiting a page.","analyst_note":"","how_to_check":"Open chrome://settings/help and read the installed version; anything below 156.0.8078.47 is exposed.","needs_analyst":false,"not_affected_if":["already-on-156.0.8078.47-or-later"],"user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"critical"},"cost_usd":0.00048,"input_tokens":2961,"output_tokens":367,"severity_before":"critical"},"analyst_status":null,"analyst_note":null,"search":"'-113056':14A,17A '-2026':13A,16A '156.0.8078.47':31B,68C 'allow':69C 'arbitrari':53B,76C 'attack':43B,72C 'browser':20B,57B 'bug':36B 'chrome':1A,19A,21B,29B,65C 'chromium':86C 'code':11A,40B,54B,77C 'corrupt':3A,35B,60C 'craft':47B,83C 'cve':12A,15A 'desktop':22B 'execut':75C 'googl':28B,64C 'google':18A 'html':48B,84C 'let':6A 'linux':23B 'low':89C 'maco':24B 'memori':2A,34B,59C 'outsid':55B,78C 'packag':25B 'page':9A,49B,85C 'performanceapi':5A,39B,62C 'potenti':51B,74C 'prior':66C 'remot':42B,71C 'run':10A,52B 'runtim':26B 'sandbox':58B,80C 'secur':87C 'serv':45B 'sever':88C 'via':81C 'web':8A 'window':27B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:18:56+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-2026-113056","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113056","severity":null,"published_at":"2026-10-20T22:18:56+00:00","modified_at":"2026-10-22T23:18:25+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"}