{"id":"CVE-2026-113138","kind":"vulnerability","aliases":["CVE-2026-113138"],"related":[],"title":"Google Chrome: memory flaw in web app installs lets a web page run code","description":"Memory corruption in WebAppInstalls in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)","summary":"A memory corruption bug in Chrome's WebAppInstalls component can be triggered by a crafted HTML page. An attacker who lures a user to that page may run arbitrary code outside the browser sandbox.","severity":"critical","cvss":9.6,"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","other"],"not_affected_if":["already-on-156.0.8078.47-or-later"],"how_to_check":"Open Chrome, go to chrome://settings/help and read the version; anything below 156.0.8078.47 is affected.","fix":"Update Google Chrome to 156.0.8078.47 or later and relaunch the browser.","status":"open","published_at":"2026-10-20T22:19:06+00:00","first_seen_at":"2026-10-23T21:57:24+00:00","triaged_at":"2026-10-23T22:36:54+00:00","updated_at":"2026-10-23T22:36:54+00:00","category":"other","confidence":0.8,"triage":{"at":"2026-10-23T22:36:54Z","model":"claude-haiku-5-5","output":{"fix":"Update Google Chrome to 156.0.8078.47 or later and relaunch the browser.","reach":"internet","title":"Google Chrome: memory flaw in web app installs lets a web page run code","impact":"high","summary":"A memory corruption bug in Chrome's WebAppInstalls component can be triggered by a crafted HTML page. An attacker who lures a user to that page may run arbitrary code outside the browser sandbox.","category":"other","who_cares":["chrome","desktop","browsers"],"confidence":0.8,"needs_auth":"no","worst_case":"Arbitrary code runs outside the browser sandbox on the user's machine.","analyst_note":"","how_to_check":"Open Chrome, go to chrome://settings/help and read the version; anything below 156.0.8078.47 is affected.","needs_analyst":false,"not_affected_if":["already-on-156.0.8078.47-or-later"],"user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"critical"},"cost_usd":0.000472,"input_tokens":2953,"output_tokens":354,"severity_before":"critical"},"analyst_status":null,"analyst_note":null,"search":"'-113138':17A,20A '-2026':16A,19A '156.0.8078.47':69C 'allow':70C 'app':7A 'arbitrari':54B,77C 'attack':44B,73C 'browser':23B,58B 'bug':29B 'chrome':2A,22A,24B,31B,66C 'chromium':87C 'code':14A,55B,78C 'compon':34B 'corrupt':28B,61C 'craft':40B,84C 'cve':15A,18A 'desktop':25B 'execut':76C 'flaw':4A 'googl':1A,65C 'google':21A 'html':41B,85C 'instal':8A 'let':9A 'lure':46B 'may':52B 'medium':90C 'memori':3A,27B,60C 'outsid':56B,79C 'page':12A,42B,51B,86C 'potenti':75C 'prior':67C 'remot':72C 'run':13A,53B 'sandbox':59B,81C 'secur':88C 'sever':89C 'trigger':37B 'user':48B 'via':82C 'web':6A,11A 'webappinstal':33B,63C","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:19:06+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","cvss_by":"134c704f-9b21-4f2e-91b3-4a467353bcc0","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-113138","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113138","severity":null,"published_at":"2026-10-20T22:19:06+00:00","modified_at":"2026-10-22T23:18:26+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"}