{"id":"CVE-2026-118344","kind":"vulnerability","aliases":["CVE-2026-118344"],"related":[],"title":"Google Chrome: use-after-free in Layout runs code via crafted page","description":"Use after free in Layout in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Critical)","summary":"A use-after-free bug in the Layout component of Google Chrome before 156.0.8078.73 lets a remote attacker run code inside the browser sandbox. The attacker only needs to lure a user to a crafted HTML page.","severity":"critical","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browsers","chrome","endpoints","other"],"not_affected_if":["already-on-156.0.8078.73-or-later"],"how_to_check":"- Open Chrome, go to `chrome://settings/help` and read the installed version\n- On managed machines, run `google-chrome --version` (Linux) and check it is at least `156.0.8078.73`","fix":"- Update Google Chrome to `156.0.8078.73` or later\n- Relaunch the browser after the update so the new version is running","status":"open","published_at":"2026-10-27T23:17:03+00:00","first_seen_at":"2026-10-27T23:29:43+00:00","triaged_at":"2026-10-27T23:31:38+00:00","updated_at":"2026-10-27T23:31:38+00:00","category":"other","confidence":0.7,"triage":{"at":"2026-10-27T23:31:38Z","model":"claude-haiku-5-5","output":{"fix":"- Update Google Chrome to `156.0.8078.73` or later\n- Relaunch the browser after the update so the new version is running","reach":"internet","title":"Google Chrome: use-after-free in Layout runs code via crafted page","impact":"high","summary":"A use-after-free bug in the Layout component of Google Chrome before 156.0.8078.73 lets a remote attacker run code inside the browser sandbox. The attacker only needs to lure a user to a crafted HTML page.","category":"other","nicknames":[],"who_cares":["chrome","browsers","endpoints"],"confidence":0.7,"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, go to `chrome://settings/help` and read the installed version\n- On managed machines, run `google-chrome --version` (Linux) and check it is at least `156.0.8078.73`","needs_analyst":false,"not_affected_if":["already-on-156.0.8078.73-or-later"],"who_is_affected":"Anyone running Google Chrome older than 156.0.8078.73 is exposed, since the flaw is triggered by visiting a crafted HTML page. Teams that manage browsers on endpoints should push the update; web applications and servers are not affected by this flaw itself.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"critical"},"cost_usd":0.000581,"input_tokens":3295,"output_tokens":503,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-118344':16A,19A '-2026':15A,18A '156.0.8078.73':37B,71C 'allow':72C 'arbitrari':78C 'attack':41B,49B,75C 'browser':20B,46B 'bug':28B 'chrome':2A,21B,35B,68C 'chromium':88C 'code':10A,43B,79C 'compon':32B 'craft':12A,58B,85C 'critic':91C 'cve':14A,17A 'endpoint':22B 'execut':77C 'free':6A,27B,63C 'googl':1A,34B,67C 'html':59B,86C 'insid':44B,80C 'layout':8A,31B,65C 'let':38B 'lure':53B 'need':51B 'page':13A,60B,87C 'prior':69C 'remot':40B,74C 'run':9A,42B 'sandbox':47B,82C 'secur':89C 'sever':90C 'use':4A,25B,61C 'use-after-fre':3A,24B 'user':55B 'via':11A,83C","nicknames":[],"mitigations":[],"who_affected":"Anyone running Google Chrome older than 156.0.8078.73 is exposed, since the flaw is triggered by visiting a crafted HTML page. Teams that manage browsers on endpoints should push the update; web applications and servers are not affected by this flaw itself.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-27T23:17:03+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-118344","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-118344","severity":null,"published_at":"2026-10-27T23:17:03+00:00","modified_at":"2026-10-27T23:17:03+00:00","first_seen_at":"2026-10-27T23:29:43+00:00","fetched_at":"2026-10-27T23:29:43+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"}