{"id":"CVE-2026-112999","kind":"vulnerability","aliases":["CVE-2026-112999"],"related":[],"title":"Chrome: use-after-free in API lets a web page run code","description":"Use after free in API 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: Medium)","summary":"Google Chrome before 156.0.8078.47 has a use-after-free bug in an API that a crafted HTML page can trigger. An attacker who lures a user to the 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","browser-users","chrome","desktop","runtime","vendor"],"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.\nOn managed fleets, query the installed Chrome version with your device management tool.","fix":"Update Google Chrome to 156.0.8078.47 or later and restart the browser.","status":"open","published_at":"2026-10-20T22:18:50+00:00","first_seen_at":"2026-10-23T21:57:23+00:00","triaged_at":"2026-10-23T22:38:27+00:00","updated_at":"2026-10-23T22:38:27+00:00","category":"vendor","confidence":0.8,"triage":{"at":"2026-10-23T22:38:27Z","model":"claude-haiku-5-5","output":{"fix":"Update Google Chrome to 156.0.8078.47 or later and restart the browser.","reach":"internet","title":"Chrome: use-after-free in API lets a web page run code","impact":"high","summary":"Google Chrome before 156.0.8078.47 has a use-after-free bug in an API that a crafted HTML page can trigger. An attacker who lures a user to the page can execute arbitrary code inside the browser sandbox.","category":"vendor","who_cares":["chrome","desktop","browser-users"],"confidence":0.8,"needs_auth":"no","worst_case":"Attacker runs code inside the browser sandbox after a visit to a crafted page.","analyst_note":"","how_to_check":"Run chrome://version in Chrome and compare the version with 156.0.8078.47.\nOn managed fleets, query the installed Chrome version with your device management tool.","needs_analyst":false,"not_affected_if":["already-on-156.0.8078.47-or-later"],"user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.00048,"input_tokens":2937,"output_tokens":372,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-112999':16A,19A '-2026':15A,18A '156.0.8078.47':33B,78C 'allow':79C 'api':7A,43B,72C 'arbitrari':62B,85C 'attack':52B,82C 'browser':22B,24B,66B 'browser-us':23B 'bug':40B 'chrome':1A,21A,26B,31B,75C 'chromium':95C 'code':13A,63B,86C 'craft':46B,92C 'cve':14A,17A 'desktop':27B 'execut':61B,84C 'free':5A,39B,70C 'googl':30B,74C 'google':20A 'html':47B,93C 'insid':64B,87C 'let':8A 'lure':54B 'medium':98C 'page':11A,48B,59B,94C 'prior':76C 'remot':81C 'run':12A 'runtim':28B 'sandbox':67B,89C 'secur':96C 'sever':97C 'trigger':50B 'use':3A,37B,68C 'use-after-fre':2A,36B 'user':25B,56B 'vendor':29B 'via':90C 'web':10A","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:18:50+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-2026-112999","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112999","severity":null,"published_at":"2026-10-20T22:18:50+00:00","modified_at":"2026-10-21T17:11:53+00:00","first_seen_at":"2026-10-23T21:57:23+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"}