{"id":"CVE-2026-113303","kind":"vulnerability","aliases":["CVE-2026-113303"],"related":[],"title":"Chrome: WebRTC memory corruption lets a crafted page run code","description":"Memory corruption in WebRTC 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: Critical)","summary":"A memory corruption bug in the WebRTC component of Google Chrome before 156.0.8078.47 lets a remote attacker run arbitrary code inside the browser sandbox. The attacker only needs the victim to open a crafted HTML page.","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","desktop","runtime","webrtc"],"not_affected_if":["chrome-already-updated"],"how_to_check":"Open chrome://settings/help or run chrome --version and compare against 156.0.8078.47.","fix":"Update Google Chrome to 156.0.8078.47 or later.","status":"open","published_at":"2026-10-20T22:19:24+00:00","first_seen_at":"2026-10-23T21:57:24+00:00","triaged_at":"2026-10-23T22:35:14+00:00","updated_at":"2026-10-23T22:35:14+00:00","category":"runtime","confidence":0.8,"triage":{"at":"2026-10-23T22:35:14Z","model":"claude-haiku-5-5","output":{"fix":"Update Google Chrome to 156.0.8078.47 or later.","reach":"internet","title":"Chrome: WebRTC memory corruption lets a crafted page run code","impact":"high","summary":"A memory corruption bug in the WebRTC component of Google Chrome before 156.0.8078.47 lets a remote attacker run arbitrary code inside the browser sandbox. The attacker only needs the victim to open a crafted HTML page.","category":"runtime","who_cares":["chrome","browsers","desktop"],"confidence":0.8,"needs_auth":"no","worst_case":"Attacker runs code inside the browser sandbox after visiting a page","analyst_note":"","how_to_check":"Open chrome://settings/help or run chrome --version and compare against 156.0.8078.47.","needs_analyst":false,"not_affected_if":["chrome-already-updated"],"user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000465,"input_tokens":2955,"output_tokens":340,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-113303':13A,16A '-2026':12A,15A '156.0.8078.47':36B,69C 'allow':70C 'arbitrari':42B,77C 'attack':40B,49B,73C 'browser':19B,46B 'bug':27B 'chrome':1A,18A,20B,34B,66C 'chromium':87C 'code':10A,43B,78C 'compon':31B 'corrupt':4A,26B,61C 'craft':7A,57B,84C 'critic':90C 'cve':11A,14A 'desktop':21B 'execut':76C 'googl':33B,65C 'google':17A 'html':58B,85C 'insid':44B,79C 'let':5A,37B 'memori':3A,25B,60C 'need':51B 'open':55B 'page':8A,59B,86C 'potenti':75C 'prior':67C 'remot':39B,72C 'run':9A,41B 'runtim':22B 'sandbox':47B,81C 'secur':88C 'sever':89C 'via':82C 'victim':53B 'webrtc':2A,23B,30B,63C","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:19:24+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-2026-113303","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113303","severity":null,"published_at":"2026-10-20T22:19:24+00:00","modified_at":"2026-10-21T17:06:11+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"}