{"id":"CVE-2026-113111","kind":"vulnerability","aliases":["CVE-2026-113111"],"related":[],"title":"Google Chrome: compositing use-after-free lets a crafted page run code","description":"Use after free in Compositing 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: Medium)","summary":"A use-after-free bug in Chrome's Compositing component lets a remote attacker run arbitrary code inside the browser sandbox through a crafted HTML page. The attacker gets code execution in the renderer after a victim loads the page, but the sources do not say whether a sandbox escape is also needed.","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":["browsers","chrome","linux","macos","other","runtime","windows"],"not_affected_if":["already-on-fixed-version"],"how_to_check":"Run chrome://version in Chrome and compare the version with 156.0.8078.47.","fix":"Update Google Chrome to 156.0.8078.47 or later.","status":"open","published_at":"2026-10-20T22:19:03+00:00","first_seen_at":"2026-10-23T21:57:24+00:00","triaged_at":"2026-10-23T22:37:16+00:00","updated_at":"2026-10-23T22:37:16+00:00","category":"other","confidence":0.8,"triage":{"at":"2026-10-23T22:37:16Z","model":"claude-haiku-5-5","output":{"fix":"Update Google Chrome to 156.0.8078.47 or later.\nunknown","reach":"internet","title":"Google Chrome: compositing use-after-free lets a crafted page run code","impact":"high","summary":"A use-after-free bug in Chrome's Compositing component lets a remote attacker run arbitrary code inside the browser sandbox through a crafted HTML page. The attacker gets code execution in the renderer after a victim loads the page, but the sources do not say whether a sandbox escape is also needed.","category":"other","who_cares":["chrome","browsers","windows","macos","linux"],"confidence":0.8,"needs_auth":"no","worst_case":"Attacker runs arbitrary code inside the Chrome sandbox via a web page","analyst_note":"","how_to_check":"Run chrome://version in Chrome and compare the version with 156.0.8078.47.\nunknown","needs_analyst":false,"not_affected_if":["already-on-fixed-version"],"user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000481,"input_tokens":2948,"output_tokens":373,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-113111':16A,19A '-2026':15A,18A '156.0.8078.47':93C 'allow':94C 'also':81B 'arbitrari':45B,100C 'attack':43B,57B,97C 'browser':22B,49B 'bug':34B 'chrome':2A,21A,23B,36B,90C 'chromium':110C 'code':13A,46B,59B,101C 'compon':39B 'composit':3A,38B,87C 'craft':10A,53B,107C 'cve':14A,17A 'escap':79B 'execut':60B,99C 'free':7A,33B,85C 'get':58B 'googl':1A,89C 'google':20A 'html':54B,108C 'insid':47B,102C 'let':8A,40B 'linux':24B 'load':67B 'maco':25B 'medium':113C 'need':82B 'page':11A,55B,69B,109C 'prior':91C 'remot':42B,96C 'render':63B 'run':12A,44B 'runtim':27B 'sandbox':50B,78B,104C 'say':75B 'secur':111C 'sever':112C 'sourc':72B 'use':5A,31B,83C 'use-after-fre':4A,30B 'via':105C 'victim':66B 'whether':76B 'window':28B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:19:03+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-2026-113111","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113111","severity":null,"published_at":"2026-10-20T22:19:03+00:00","modified_at":"2026-10-22T15:32:51+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"}