{"id":"CVE-2026-76031","kind":"vulnerability","aliases":["CVE-2026-76031"],"related":[],"title":"Chrome: use-after-free in Input lets a crafted page run code","description":"Use after free in Input in Google Chrome prior to 156.0.8078.79 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)","summary":"A use-after-free bug in the Input component of Google Chrome before 156.0.8078.79 lets a remote attacker run arbitrary code inside the browser sandbox via a crafted HTML page. Chromium rates it High severity.","severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browsers","chrome","desktop","package"],"not_affected_if":["chrome-updated"],"how_to_check":"- Open Chrome and check the version under Settings > About Chrome, or run `chrome --version` on the machine.\n- Compare the installed version against `156.0.8078.79`.","fix":"- Google Chrome: move to `156.0.8078.79` or later.","status":"open","published_at":"2026-10-30T01:16:47+00:00","first_seen_at":"2026-10-30T01:27:59+00:00","triaged_at":"2026-10-30T01:29:39+00:00","updated_at":"2026-10-30T01:29:39+00:00","category":"package","confidence":0.8,"triage":{"at":"2026-10-30T01:29:39Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome: move to `156.0.8078.79` or later.","reach":"internet","title":"Chrome: use-after-free in Input lets a crafted page run code","impact":"high","summary":"A use-after-free bug in the Input component of Google Chrome before 156.0.8078.79 lets a remote attacker run arbitrary code inside the browser sandbox via a crafted HTML page. Chromium rates it High severity.","audience":"everyone","category":"package","nicknames":[],"who_cares":["chrome","browsers","desktop"],"confidence":0.8,"fix_status":"available","needs_auth":"no","worst_case":"Attacker runs code inside the browser sandbox after a visit to a crafted page.","analyst_note":"","how_to_check":"- Open Chrome and check the version under Settings > About Chrome, or run `chrome --version` on the machine.\n- Compare the installed version against `156.0.8078.79`.","plain_action":"Update Google Chrome to version 156.0.8078.79 or later, then restart the browser.","needs_analyst":false,"not_affected_if":["chrome-updated"],"who_is_affected":"Any device running Google Chrome before 156.0.8078.79 is exposed when the user visits a malicious page. Exploitation needs a user to load the crafted HTML page, and the attacker code is confined to the sandbox. Systems that already run a current Chrome build are not affected.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000671,"input_tokens":4099,"output_tokens":523,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2026':15A,18A '-76031':16A,19A '156.0.8078.79':38B,70C 'allow':71C 'arbitrari':44B,77C 'attack':42B,74C 'browser':20B,48B 'bug':29B 'chrome':1A,21B,36B,67C 'chromium':55B,87C 'code':13A,45B,78C 'compon':33B 'craft':10A,52B,84C 'cve':14A,17A 'desktop':22B 'execut':76C 'free':5A,28B,62C 'googl':35B,66C 'high':58B,90C 'html':53B,85C 'input':7A,32B,64C 'insid':46B,79C 'let':8A,39B 'packag':23B 'page':11A,54B,86C 'prior':68C 'rate':56B 'remot':41B,73C 'run':12A,43B 'sandbox':49B,81C 'secur':88C 'sever':59B,89C 'use':3A,26B,60C 'use-after-fre':2A,25B 'via':50B,82C","nicknames":[],"mitigations":[],"who_affected":"Any device running Google Chrome before 156.0.8078.79 is exposed when the user visits a malicious page. Exploitation needs a user to load the crafted HTML page, and the attacker code is confined to the sandbox. Systems that already run a current Chrome build are not affected.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"everyone","plain_action":"Update Google Chrome to version 156.0.8078.79 or later, then restart the browser.","first_public_at":"2026-10-30T01:16:47+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-76031","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-76031","severity":null,"published_at":"2026-10-30T01:16:47+00:00","modified_at":"2026-10-30T01:16:47+00:00","first_seen_at":"2026-10-30T01:27:59+00:00","fetched_at":"2026-10-30T01:27:59+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"}