{"id":"CVE-2026-113240","kind":"vulnerability","aliases":["CVE-2026-113240"],"related":[],"title":"Chrome: use-after-free in Chromecast lets crafted page run code in sandbox","description":"Use after free in Chromecast 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: Medium)","summary":"A use-after-free bug in the Chromecast component of Google Chrome before 156.0.8078.47 lets a remote attacker run arbitrary code inside the browser sandbox via a crafted HTML page. The attacker gets code execution within the sandboxed renderer, not full system access 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","linux","macos","package","windows"],"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":"2026-10-20T22:19:17+00:00","first_seen_at":"2026-10-23T21:57:24+00:00","triaged_at":"2026-10-23T22:35:52+00:00","updated_at":"2026-10-23T22:35:52+00:00","category":"package","confidence":0.8,"triage":{"at":"2026-10-23T22:35:52Z","model":"claude-haiku-5-5","output":{"fix":"Update Google Chrome to 156.0.8078.47 or later.","reach":"internet","title":"Chrome: use-after-free in Chromecast lets crafted page run code in sandbox","impact":"medium","summary":"A use-after-free bug in the Chromecast component of Google Chrome before 156.0.8078.47 lets a remote attacker run arbitrary code inside the browser sandbox via a crafted HTML page. The attacker gets code execution within the sandboxed renderer, not full system access on its own.","category":"package","who_cares":["chrome","windows","macos","linux"],"confidence":0.8,"needs_auth":"no","worst_case":"Attacker runs code inside the browser sandbox after a victim visits 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":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000478,"input_tokens":2947,"output_tokens":367,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-113240':17A,20A '-2026':16A,19A '156.0.8078.47':43B,83C 'access':72B 'allow':84C 'arbitrari':49B,91C 'attack':47B,61B,87C 'browser':23B,53B 'bug':34B 'chrome':1A,22A,24B,41B,80C 'chromecast':7A,37B,77C 'chromium':101C 'code':12A,50B,63B,92C 'compon':38B 'craft':9A,57B,98C 'cve':15A,18A 'execut':64B,90C 'free':5A,33B,75C 'full':70B 'get':62B 'googl':40B,79C 'google':21A 'html':58B,99C 'insid':51B,93C 'let':8A,44B 'linux':25B 'maco':26B 'medium':104C 'packag':27B 'page':10A,59B,100C 'potenti':89C 'prior':81C 'remot':46B,86C 'render':68B 'run':11A,48B 'sandbox':14A,54B,67B,95C 'secur':102C 'sever':103C 'system':71B 'use':3A,31B,73C 'use-after-fre':2A,30B 'via':55B,96C 'window':28B 'within':65B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:19:17+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-2026-113240","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113240","severity":null,"published_at":"2026-10-20T22:19:17+00:00","modified_at":"2026-10-22T14:03:26+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"}