{"id":"CVE-2026-113231","kind":"vulnerability","aliases":["CVE-2026-113231"],"related":[],"title":"Chrome: crafted web page can run code inside the browser sandbox","description":"Improper input validation in Extensions in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)","summary":"Google Chrome before 156.0.8078.47 has an input validation flaw in its Extensions component. A remote attacker who lures a user to a crafted HTML page can potentially execute arbitrary code inside the 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":["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 with 156.0.8078.47.","fix":"Update Google Chrome to 156.0.8078.47 or later.","status":"open","published_at":"2026-10-20T22:19:16+00:00","first_seen_at":"2026-10-23T21:57:24+00:00","triaged_at":"2026-10-23T22:36:00+00:00","updated_at":"2026-10-23T22:36:00+00:00","category":"runtime","confidence":0.7,"triage":{"at":"2026-10-23T22:36:00Z","model":"claude-haiku-5-5","output":{"fix":"Update Google Chrome to 156.0.8078.47 or later.","reach":"internet","title":"Chrome: crafted web page can run code inside the browser sandbox","impact":"high","summary":"Google Chrome before 156.0.8078.47 has an input validation flaw in its Extensions component. A remote attacker who lures a user to a crafted HTML page can potentially execute arbitrary code inside the sandbox.","category":"runtime","who_cares":["chrome","browsers","windows","macos","linux"],"confidence":0.7,"needs_auth":"no","worst_case":"Attacker runs code inside the browser sandbox after a user visits a page","analyst_note":"","how_to_check":"Run chrome://version in Chrome and compare the version with 156.0.8078.47.","needs_analyst":false,"not_affected_if":["already-on-156.0.8078.47-or-later"],"user_interaction":"yes","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000467,"input_tokens":2948,"output_tokens":344,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-113231':14A,17A '-2026':13A,16A '156.0.8078.47':29B,69C 'allow':70C 'arbitrari':54B,77C 'attack':41B,73C 'browser':10A,20B 'chrome':1A,19A,21B,27B,66C 'chromium':87C 'code':7A,55B,78C 'compon':38B 'craft':2A,48B,84C 'cve':12A,15A 'execut':53B,76C 'extens':37B,63C 'flaw':34B 'googl':26B,65C 'google':18A 'html':49B,85C 'improp':59C 'input':32B,60C 'insid':8A,56B,79C 'linux':22B 'lure':43B 'maco':23B 'medium':90C 'page':4A,50B,86C 'potenti':52B,75C 'prior':67C 'remot':40B,72C 'run':6A 'runtim':24B 'sandbox':11A,58B,81C 'secur':88C 'sever':89C 'user':45B 'valid':33B,61C 'via':82C 'web':3A 'window':25B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:19:16+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-2026-113231","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113231","severity":null,"published_at":"2026-10-20T22:19:16+00:00","modified_at":"2026-10-22T14:04:46+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"}