{"id":"CVE-2026-119262","kind":"vulnerability","aliases":["CVE-2026-119262"],"related":[],"title":"Chrome: V8 input validation flaw lets a crafted web page run code","description":"Improper input validation in V8 in Google Chrome prior to 156.0.8078.79 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)","summary":"A flaw in V8, the JavaScript engine inside Google Chrome, lets a remote attacker execute arbitrary code inside the browser sandbox when a victim opens a crafted HTML page. Chromium rates it High severity.","severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browsers","chrome","headless-chrome","runtime"],"not_affected_if":["chrome-already-updated","no-browser-exposure"],"how_to_check":"- Open Chrome and check the version under Settings > About Chrome, or run `google-chrome --version` on Linux.\n- Compare the installed version with `156.0.8078.79`; anything older is affected.","fix":"- Google Chrome: move to `156.0.8078.79` or later.","status":"open","published_at":"2026-10-30T01:16:44+00:00","first_seen_at":"2026-10-30T01:27:58+00:00","triaged_at":"2026-10-30T01:29:58+00:00","updated_at":"2026-10-30T01:29:58+00:00","category":"runtime","confidence":0.8,"triage":{"at":"2026-10-30T01:29:58Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome: move to `156.0.8078.79` or later.","reach":"internet","title":"Chrome: V8 input validation flaw lets a crafted web page run code","impact":"high","summary":"A flaw in V8, the JavaScript engine inside Google Chrome, lets a remote attacker execute arbitrary code inside the browser sandbox when a victim opens a crafted HTML page. Chromium rates it High severity.","audience":"everyone","category":"runtime","nicknames":[],"who_cares":["chrome","browsers","headless-chrome"],"confidence":0.8,"fix_status":"available","needs_auth":"no","worst_case":"Attacker runs code inside the browser sandbox via a crafted page","analyst_note":"","how_to_check":"- Open Chrome and check the version under Settings > About Chrome, or run `google-chrome --version` on Linux.\n- Compare the installed version with `156.0.8078.79`; anything older is affected.","plain_action":"Update Google Chrome to version 156.0.8078.79 or later: open the menu, choose Help > About Google Chrome, and let it install.","needs_analyst":false,"not_affected_if":["chrome-already-updated","no-browser-exposure"],"who_is_affected":"Anyone running Google Chrome older than 156.0.8078.79 is exposed when they load untrusted web pages. Servers and applications are not affected unless they embed a vulnerable Chrome build, such as a headless browser used for scraping or rendering; those teams should check their Chrome version.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000693,"input_tokens":4103,"output_tokens":565,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-119262':15A,18A '-2026':14A,17A '156.0.8078.79':69C 'allow':70C 'arbitrari':40B,77C 'attack':38B,73C 'browser':19B,44B 'chrome':1A,20B,23B,34B,66C 'chromium':54B,87C 'code':12A,41B,78C 'craft':8A,51B,84C 'cve':13A,16A 'engin':31B 'execut':39B,76C 'flaw':5A,26B 'googl':33B,65C 'headless':22B 'headless-chrom':21B 'high':57B,90C 'html':52B,85C 'improp':59C 'input':3A,60C 'insid':32B,42B,79C 'javascript':30B 'let':6A,35B 'open':49B 'page':10A,53B,86C 'potenti':75C 'prior':67C 'rate':55B 'remot':37B,72C 'run':11A 'runtim':24B 'sandbox':45B,81C 'secur':88C 'sever':58B,89C 'v8':2A,28B,63C 'valid':4A,61C 'via':82C 'victim':48B 'web':9A","nicknames":[],"mitigations":[],"who_affected":"Anyone running Google Chrome older than 156.0.8078.79 is exposed when they load untrusted web pages. Servers and applications are not affected unless they embed a vulnerable Chrome build, such as a headless browser used for scraping or rendering; those teams should check their Chrome version.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"everyone","plain_action":"Update Google Chrome to version 156.0.8078.79 or later: open the menu, choose Help > About Google Chrome, and let it install.","first_public_at":"2026-10-30T01:16:44+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-119262","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119262","severity":null,"published_at":"2026-10-30T01:16:44+00:00","modified_at":"2026-10-30T01:16:45+00:00","first_seen_at":"2026-10-30T01:27:58+00:00","fetched_at":"2026-10-30T01:27:58+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"}