{"id":"CVE-2026-113287","kind":"vulnerability","aliases":["CVE-2026-113287"],"related":[],"title":"Chrome: use-after-free in Prompts lets a web page run code in sandbox","description":"Use after free in Prompts 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: Low)","summary":"Google Chrome before 156.0.8078.47 has a use-after-free bug in its Prompts component. A remote attacker who gets a user to open a crafted HTML page can execute arbitrary code inside the browser sandbox.","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":["browser","chrome","linux","macos","runtime","windows"],"not_affected_if":["already-on-156.0.8078.47-or-later"],"how_to_check":"Run chrome://version in Chrome and compare the version with 156.0.8078.47.","fix":"Update Google Chrome to 156.0.8078.47 or later.","status":"open","published_at":"2026-10-20T22:19:22+00:00","first_seen_at":"2026-10-23T21:57:24+00:00","triaged_at":"2026-10-23T22:35:21+00:00","updated_at":"2026-10-23T22:35:21+00:00","category":"runtime","confidence":0.8,"triage":{"at":"2026-10-23T22:35:21Z","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 Prompts lets a web page run code in sandbox","impact":"high","summary":"Google Chrome before 156.0.8078.47 has a use-after-free bug in its Prompts component. A remote attacker who gets a user to open a crafted HTML page can execute arbitrary code inside the browser sandbox.","category":"runtime","who_cares":["chrome","windows","macos","linux"],"confidence":0.8,"needs_auth":"no","worst_case":"Attacker runs code inside the browser sandbox after a user visits a page","analyst_note":"","how_to_check":"Run chrome://version in Chrome and compare the version with 156.0.8078.47.","needs_analyst":false,"not_affected_if":["already-on-156.0.8078.47-or-later"],"user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"unknown"},"cost_usd":0.000468,"input_tokens":2946,"output_tokens":346,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-113287':18A,21A '-2026':17A,20A '156.0.8078.47':33B,76C 'allow':77C 'arbitrari':60B,83C 'attack':47B,80C 'browser':24B,64B 'bug':40B 'chrome':1A,23A,25B,31B,73C 'chromium':93C 'code':13A,61B,84C 'compon':44B 'craft':55B,90C 'cve':16A,19A 'execut':59B,82C 'free':5A,39B,68C 'get':49B 'googl':30B,72C 'google':22A 'html':56B,91C 'insid':62B,85C 'let':8A 'linux':26B 'low':96C 'maco':27B 'open':53B 'page':11A,57B,92C 'prior':74C 'prompt':7A,43B,70C 'remot':46B,79C 'run':12A 'runtim':28B 'sandbox':15A,65B,87C 'secur':94C 'sever':95C 'use':3A,37B,66C 'use-after-fre':2A,36B 'user':51B 'via':88C 'web':10A 'window':29B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:19:22+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-2026-113287","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113287","severity":null,"published_at":"2026-10-20T22:19:22+00:00","modified_at":"2026-10-21T17:07:42+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"}