{"id":"CVE-2026-113214","kind":"vulnerability","aliases":["CVE-2026-113214"],"related":[],"title":"Chrome: crafted HTML page can run code inside the sandbox","description":"Improper input validation in FullScreen 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: Low)","summary":"A flaw in Chrome's FullScreen handling lets a remote attacker who serves a crafted HTML page run code inside the browser sandbox. The sources rate it high (CVSS 8.8) and the Chromium security severity as Low.","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","package","windows"],"not_affected_if":["already-updated-chrome"],"how_to_check":"Run chrome://version in the browser and compare the version with 156.0.8078.47.","fix":"Update Google Chrome to 156.0.8078.47 or later.","status":"open","published_at":"2026-10-20T22:19:14+00:00","first_seen_at":"2026-10-23T21:57:24+00:00","triaged_at":"2026-10-23T22:36:08+00:00","updated_at":"2026-10-23T22:36:08+00:00","category":"package","confidence":0.7,"triage":{"at":"2026-10-23T22:36:08Z","model":"claude-haiku-5-5","output":{"fix":"Update Google Chrome to 156.0.8078.47 or later.\nunknown","reach":"internet","title":"Chrome: crafted HTML page can run code inside the sandbox","impact":"medium","summary":"A flaw in Chrome's FullScreen handling lets a remote attacker who serves a crafted HTML page run code inside the browser sandbox. The sources rate it high (CVSS 8.8) and the Chromium security severity as Low.","category":"package","who_cares":["chrome","browsers","windows","macos","linux"],"confidence":0.7,"needs_auth":"no","worst_case":"Attacker code runs inside the browser sandbox after visiting a page","analyst_note":"","how_to_check":"Run chrome://version in the browser and compare the version with 156.0.8078.47.\nunknown","needs_analyst":false,"not_affected_if":["already-updated-chrome"],"user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"unknown"},"cost_usd":0.000469,"input_tokens":2947,"output_tokens":348,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-113214':13A,16A '-2026':12A,15A '156.0.8078.47':72C '8.8':54B 'allow':73C 'arbitrari':80C 'attack':35B,76C 'browser':19B,46B 'chrome':1A,18A,20B,28B,69C 'chromium':57B,90C 'code':7A,43B,81C 'craft':2A,39B,87C 'cve':11A,14A 'cvss':53B 'execut':79C 'flaw':26B 'fullscreen':30B,66C 'googl':68C 'google':17A 'handl':31B 'high':52B 'html':3A,40B,88C 'improp':62C 'input':63C 'insid':8A,44B,82C 'let':32B 'linux':21B 'low':61B,93C 'maco':22B 'packag':23B 'page':4A,41B,89C 'potenti':78C 'prior':70C 'rate':50B 'remot':34B,75C 'run':6A,42B 'sandbox':10A,47B,84C 'secur':58B,91C 'serv':37B 'sever':59B,92C 'sourc':49B 'valid':64C 'via':85C 'window':24B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:19:14+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-2026-113214","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113214","severity":null,"published_at":"2026-10-20T22:19:14+00:00","modified_at":"2026-10-22T14:06:32+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"}