{"id":"CVE-2026-113101","kind":"vulnerability","aliases":["CVE-2026-113101"],"related":[],"title":"Google Chrome: use-after-free lets a crafted web page run code in sandbox","description":"Use after free in SiteIsolation 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: High)","summary":"Google Chrome before 156.0.8078.47 has a use-after-free bug in its Site Isolation component. A remote attacker who gets a user to open a crafted HTML page can execute arbitrary code inside the browser sandbox.","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","desktop-browser","linux","macos","other","windows"],"not_affected_if":["chrome-already-updated"],"how_to_check":"Run chrome://version in the browser and compare the version with 156.0.8078.47.\nOn managed fleets, query the installed Chrome version with the endpoint management tool.","fix":"Update Google Chrome to 156.0.8078.47 or later and restart the browser.","status":"open","published_at":"2026-10-20T22:19:01+00:00","first_seen_at":"2026-10-23T21:57:24+00:00","triaged_at":"2026-10-23T22:37:21+00:00","updated_at":"2026-10-23T22:37:21+00:00","category":"other","confidence":0.8,"triage":{"at":"2026-10-23T22:37:21Z","model":"claude-haiku-5-5","output":{"fix":"Update Google Chrome to 156.0.8078.47 or later and restart the browser.","reach":"internet","title":"Google Chrome: use-after-free lets a crafted web page run code in sandbox","impact":"high","summary":"Google Chrome before 156.0.8078.47 has a use-after-free bug in its Site Isolation component. A remote attacker who gets a user to open a crafted HTML page can execute arbitrary code inside the browser sandbox.","category":"other","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":"Run chrome://version in the browser and compare the version with 156.0.8078.47.\nOn managed fleets, query the installed Chrome version with the endpoint management tool.","needs_analyst":false,"not_affected_if":["chrome-already-updated"],"user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.00048,"input_tokens":2948,"output_tokens":371,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-113101':18A,21A '-2026':17A,20A '156.0.8078.47':35B,79C 'allow':80C 'arbitrari':63B,86C 'attack':50B,83C 'browser':27B,67B 'bug':42B 'chrome':2A,23A,24B,33B,76C 'chromium':96C 'code':13A,64B,87C 'compon':47B 'craft':9A,58B,93C 'cve':16A,19A 'desktop':26B 'desktop-brows':25B 'execut':62B,85C 'free':6A,41B,71C 'get':52B 'googl':1A,32B,75C 'google':22A 'high':99C 'html':59B,94C 'insid':65B,88C 'isol':46B 'let':7A 'linux':28B 'maco':29B 'open':56B 'page':11A,60B,95C 'prior':77C 'remot':49B,82C 'run':12A 'sandbox':15A,68B,90C 'secur':97C 'sever':98C 'site':45B 'siteisol':73C 'use':4A,39B,69C 'use-after-fre':3A,38B 'user':54B 'via':91C 'web':10A 'window':31B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:19:01+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-2026-113101","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113101","severity":null,"published_at":"2026-10-20T22:19:01+00:00","modified_at":"2026-10-22T15:33:57+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"}