{"id":"CVE-2026-118320","kind":"vulnerability","aliases":["CVE-2026-118320"],"related":[],"title":"Chrome V8: memory corruption lets a crafted web page run code","description":"Memory corruption in V8 in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)","summary":"Google Chrome versions before 156.0.8078.73 have a memory corruption bug in the V8 JavaScript engine. A remote attacker can use a crafted HTML page to potentially execute arbitrary code inside the browser sandbox.","severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browsers","chrome","desktop","runtime"],"not_affected_if":["chrome-current-version"],"how_to_check":"- Open Chrome and check the version at `chrome://settings/help`\n- Compare the installed version against `156.0.8078.73`","fix":"- Update Google Chrome to `156.0.8078.73` or later","status":"open","published_at":"2026-10-27T23:17:00+00:00","first_seen_at":"2026-10-27T23:29:43+00:00","triaged_at":"2026-10-27T23:31:58+00:00","updated_at":"2026-10-27T23:31:58+00:00","category":"runtime","confidence":0.7,"triage":{"at":"2026-10-27T23:31:58Z","model":"claude-haiku-5-5","output":{"fix":"- Update Google Chrome to `156.0.8078.73` or later","reach":"internet","title":"Chrome V8: memory corruption lets a crafted web page run code","impact":"high","summary":"Google Chrome versions before 156.0.8078.73 have a memory corruption bug in the V8 JavaScript engine. A remote attacker can use a crafted HTML page to potentially execute arbitrary code inside the browser sandbox.","category":"runtime","nicknames":[],"who_cares":["chrome","browsers","desktop"],"confidence":0.7,"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 at `chrome://settings/help`\n- Compare the installed version against `156.0.8078.73`","needs_analyst":false,"not_affected_if":["chrome-current-version"],"who_is_affected":"Anyone running Google Chrome older than `156.0.8078.73` who browses untrusted web pages is exposed. Chromium-based browsers that pick up V8 fixes from upstream may also be affected, but the sources do not say which ones. Systems that never run a browser on untrusted content can skip it.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000561,"input_tokens":3297,"output_tokens":463,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-118320':14A,17A '-2026':13A,16A '156.0.8078.73':26B,64C 'allow':65C 'arbitrari':49B,72C 'attack':39B,68C 'browser':18B,53B 'bug':31B 'chrome':1A,19B,23B,61C 'chromium':82C 'code':11A,50B,73C 'corrupt':4A,30B,56C 'craft':7A,43B,79C 'cve':12A,15A 'desktop':20B 'engin':36B 'execut':48B,71C 'googl':22B,60C 'high':85C 'html':44B,80C 'insid':51B,74C 'javascript':35B 'let':5A 'memori':3A,29B,55C 'page':9A,45B,81C 'potenti':47B,70C 'prior':62C 'remot':38B,67C 'run':10A 'runtim':21B 'sandbox':54B,76C 'secur':83C 'sever':84C 'use':41B 'v8':2A,34B,58C 'version':24B 'via':77C 'web':8A","nicknames":[],"mitigations":[],"who_affected":"Anyone running Google Chrome older than `156.0.8078.73` who browses untrusted web pages is exposed. Chromium-based browsers that pick up V8 fixes from upstream may also be affected, but the sources do not say which ones. Systems that never run a browser on untrusted content can skip it.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-27T23:17:00+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-118320","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-118320","severity":null,"published_at":"2026-10-27T23:17:00+00:00","modified_at":"2026-10-27T23:17:00+00:00","first_seen_at":"2026-10-27T23:29:43+00:00","fetched_at":"2026-10-27T23:29:43+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"}