{"id":"CVE-2026-113343","kind":"vulnerability","aliases":["CVE-2026-113343"],"related":[],"title":"Chrome: sandbox memory corruption lets a crafted web page run code","description":"Memory corruption in Sandbox 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 memory corruption bug in the Chrome sandbox lets a remote attacker run arbitrary code inside the sandbox by serving a crafted HTML page. Exploitation needs a victim to load that page, and the sandbox is not a full escape on its own.","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","endpoints","package"],"not_affected_if":["already-on-156.0.8078.47-or-later"],"how_to_check":"Open chrome://version and compare the version with 156.0.8078.47.\nOn managed machines, check the installed Chrome version with your endpoint management tool.","fix":"Update Google Chrome to 156.0.8078.47 or later and relaunch the browser.","status":"open","published_at":"2026-10-20T22:19:29+00:00","first_seen_at":"2026-10-23T21:57:25+00:00","triaged_at":"2026-10-23T22:34:49+00:00","updated_at":"2026-10-23T22:34:49+00:00","category":"package","confidence":0.8,"triage":{"at":"2026-10-23T22:34:49Z","model":"claude-haiku-5-5","output":{"fix":"Update Google Chrome to 156.0.8078.47 or later and relaunch the browser.","reach":"internet","title":"Chrome: sandbox memory corruption lets a crafted web page run code","impact":"medium","summary":"A memory corruption bug in the Chrome sandbox lets a remote attacker run arbitrary code inside the sandbox by serving a crafted HTML page. Exploitation needs a victim to load that page, and the sandbox is not a full escape on its own.","category":"package","who_cares":["chrome","endpoints","browsers"],"confidence":0.8,"needs_auth":"no","worst_case":"Attacker code runs inside the Chrome sandbox after a victim visits a page","analyst_note":"","how_to_check":"Open chrome://version and compare the version with 156.0.8078.47.\nOn managed machines, check the installed Chrome version with your endpoint management tool.","needs_analyst":false,"not_affected_if":["already-on-156.0.8078.47-or-later"],"user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000486,"input_tokens":2948,"output_tokens":383,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-113343':14A,17A '-2026':13A,16A '156.0.8078.47':73C 'allow':74C 'arbitrari':37B,80C 'attack':35B,77C 'browser':20B 'bug':27B 'chrome':1A,19A,21B,30B,70C 'chromium':90C 'code':11A,38B,81C 'corrupt':4A,26B,65C 'craft':7A,45B,87C 'cve':12A,15A 'endpoint':22B 'escap':63B 'execut':79C 'exploit':48B 'full':62B 'googl':69C 'google':18A 'html':46B,88C 'insid':39B,82C 'let':5A,32B 'load':53B 'medium':93C 'memori':3A,25B,64C 'need':49B 'packag':23B 'page':9A,47B,55B,89C 'prior':71C 'remot':34B,76C 'run':10A,36B 'sandbox':2A,31B,41B,58B,67C,84C 'secur':91C 'serv':43B 'sever':92C 'via':85C 'victim':51B 'web':8A","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:19:29+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-2026-113343","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113343","severity":null,"published_at":"2026-10-20T22:19:29+00:00","modified_at":"2026-10-21T17:02:24+00:00","first_seen_at":"2026-10-23T21:57:25+00:00","fetched_at":"2026-10-23T22:29:00+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"}