{"id":"CVE-2026-113336","kind":"vulnerability","aliases":["CVE-2026-113336"],"related":[],"title":"Chrome: memory corruption in compositing lets a web page run code","description":"Memory corruption in Compositing 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: High)","summary":"Google Chrome before 156.0.8078.47 has a memory corruption bug in its Compositing component. A remote attacker who gets a user to open a crafted HTML page could execute 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":["browsers","chrome","linux","macos","runtime","windows"],"not_affected_if":["already-on-156.0.8078.47-or-later"],"how_to_check":"Run chrome://version in Chrome and compare the version to 156.0.8078.47.\nOn managed machines, check the installed Chrome version with your MDM or endpoint tool.","fix":"Update Google Chrome to 156.0.8078.47 or later and restart the browser.","status":"open","published_at":"2026-10-20T22:19:28+00:00","first_seen_at":"2026-10-23T21:57:24+00:00","triaged_at":"2026-10-23T22:34:56+00:00","updated_at":"2026-10-23T22:34:56+00:00","category":"runtime","confidence":0.8,"triage":{"at":"2026-10-23T22:34:56Z","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 compositing lets a web page run code","impact":"high","summary":"Google Chrome before 156.0.8078.47 has a memory corruption bug in its Compositing component. A remote attacker who gets a user to open a crafted HTML page could execute arbitrary code outside the browser sandbox.","category":"runtime","who_cares":["chrome","windows","macos","linux"],"confidence":0.8,"needs_auth":"no","worst_case":"Attacker runs code outside the sandbox after a victim opens a page.","analyst_note":"","how_to_check":"Run chrome://version in Chrome and compare the version to 156.0.8078.47.\nOn managed machines, check the installed Chrome version with your MDM or endpoint tool.","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":0.000483,"input_tokens":2950,"output_tokens":376,"severity_before":"critical"},"analyst_status":null,"analyst_note":null,"search":"'-113336':14A,17A '-2026':13A,16A '156.0.8078.47':29B,69C 'allow':70C 'arbitrari':54B,77C 'attack':41B,73C 'browser':20B,58B 'bug':34B 'chrome':1A,19A,21B,27B,66C 'chromium':87C 'code':11A,55B,78C 'compon':38B 'composit':5A,37B,63C 'corrupt':3A,33B,61C 'could':52B 'craft':49B,84C 'cve':12A,15A 'execut':53B,76C 'get':43B 'googl':26B,65C 'google':18A 'high':90C 'html':50B,85C 'let':6A 'linux':22B 'maco':23B 'memori':2A,32B,60C 'open':47B 'outsid':56B,79C 'page':9A,51B,86C 'potenti':75C 'prior':67C 'remot':40B,72C 'run':10A 'runtim':24B 'sandbox':59B,81C 'secur':88C 'sever':89C 'user':45B 'via':82C 'web':8A 'window':25B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:19:28+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-2026-113336","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113336","severity":null,"published_at":"2026-10-20T22:19:28+00:00","modified_at":"2026-10-22T23:18:29+00:00","first_seen_at":"2026-10-23T21:57:24+00:00","fetched_at":"2026-10-23T22:29:00+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"}