{"id":"CVE-2026-126879","kind":"vulnerability","aliases":["CVE-2026-126879"],"related":[],"title":"Chrome: use-after-free in Layout lets a crafted page run code","description":"Use after free in Layout in Google Chrome prior to 157.0.8103.78 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 157.0.8103.78 lets a remote attacker run arbitrary code inside the browser sandbox when a victim opens a crafted HTML page. Chromium rates the flaw Critical.","severity":"critical","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["chrome","desktop-browsers","managed-fleets","other"],"not_affected_if":["chrome-updated","no-chrome-installed"],"how_to_check":"- Open Chrome, go to Settings > About Chrome and read the installed version\n- Compare the installed version with `157.0.8103.78`","fix":"- Google Chrome: move to `157.0.8103.78` or later","status":"open","published_at":"2026-11-11T23:17:16+00:00","first_seen_at":"2026-11-11T23:29:38+00:00","triaged_at":"2026-11-11T23:32:13+00:00","updated_at":"2026-11-11T23:32:13+00:00","category":"other","confidence":0.8,"triage":{"at":"2026-11-11T23:32:13Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome: move to `157.0.8103.78` or later","reach":"internet","title":"Chrome: use-after-free in Layout lets a crafted page run code","impact":"high","summary":"A use-after-free bug in the Layout component of Google Chrome before 157.0.8103.78 lets a remote attacker run arbitrary code inside the browser sandbox when a victim opens a crafted HTML page. Chromium rates the flaw Critical.","audience":"everyone","category":"other","nicknames":[],"who_cares":["chrome","desktop-browsers","managed-fleets"],"confidence":0.8,"fix_status":"available","needs_auth":"no","worst_case":"attacker runs code inside the browser sandbox via a crafted page","analyst_note":"","how_to_check":"- Open Chrome, go to Settings > About Chrome and read the installed version\n- Compare the installed version with `157.0.8103.78`","plain_action":"Update Google Chrome to version 157.0.8103.78 or later: Chrome menu > Help > About Google Chrome.","product_name":"","needs_analyst":false,"not_affected_if":["chrome-updated","no-chrome-installed"],"who_is_affected":"Anyone running Google Chrome older than 157.0.8103.78 is exposed when they open a web page an attacker controls. Managed fleets that pin Chrome versions are the ones most likely to lag behind. Systems that do not run Chrome are not affected.","user_interaction":"yes","product_ecosystem":"","needs_special_setup":"no","severity_if_unknown":"critical"},"cost_usd":0.000729,"input_tokens":4531,"output_tokens":552,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-126879':16A,19A '-2026':15A,18A '157.0.8103.78':41B,76C 'allow':77C 'arbitrari':47B,83C 'attack':45B,80C 'browser':23B,51B 'bug':32B 'chrome':1A,20B,39B,73C 'chromium':61B,93C 'code':13A,48B,84C 'compon':36B 'craft':10A,58B,90C 'critic':65B,96C 'cve':14A,17A 'desktop':22B 'desktop-brows':21B 'execut':82C 'flaw':64B 'fleet':26B 'free':5A,31B,68C 'googl':38B,72C 'html':59B,91C 'insid':49B,85C 'layout':7A,35B,70C 'let':8A,42B 'manag':25B 'managed-fleet':24B 'open':56B 'page':11A,60B,92C 'prior':74C 'rate':62B 'remot':44B,79C 'run':12A,46B 'sandbox':52B,87C 'secur':94C 'sever':95C 'use':3A,29B,66C 'use-after-fre':2A,28B 'via':88C 'victim':55B","nicknames":[],"mitigations":[],"who_affected":"Anyone running Google Chrome older than 157.0.8103.78 is exposed when they open a web page an attacker controls. Managed fleets that pin Chrome versions are the ones most likely to lag behind. Systems that do not run Chrome are not affected.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"everyone","plain_action":"Update Google Chrome to version 157.0.8103.78 or later: Chrome menu > Help > About Google Chrome.","pkeys":[],"ptokens":[],"labels":["chrome","critical","desktopbrowsers","managedfleets","other"],"campaign_type":null,"search_a":"'-126879':16A,19A '-2026':15A,18A 'chrome':1A 'code':13A 'craft':10A 'cve':14A,17A 'free':5A 'layout':7A 'let':8A 'page':11A 'run':12A 'use':3A 'use-after-fre':2A","search_b":"'157.0.8103.78':41B 'arbitrari':47B 'attack':45B 'browser':23B,51B 'bug':32B 'chrome':20B,39B 'chromium':61B 'code':48B 'compon':36B 'craft':58B 'critic':65B 'desktop':22B 'desktop-brows':21B 'flaw':64B 'fleet':26B 'free':31B 'googl':38B 'html':59B 'insid':49B 'layout':35B 'let':42B 'manag':25B 'managed-fleet':24B 'open':56B 'page':60B 'rate':62B 'remot':44B 'run':46B 'sandbox':52B 'use':29B 'use-after-fre':28B 'victim':55B","search_c":"'157.0.8103.78':76C 'allow':77C 'arbitrari':83C 'attack':80C 'chrome':73C 'chromium':93C 'code':84C 'craft':90C 'critic':96C 'execut':82C 'free':68C 'googl':72C 'html':91C 'insid':85C 'layout':70C 'page':92C 'prior':74C 'remot':79C 'sandbox':87C 'secur':94C 'sever':95C 'use':66C 'via':88C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-11T23:17:16+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-126879","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126879","severity":null,"published_at":"2026-11-11T23:17:16+00:00","modified_at":"2026-11-11T23:17:16+00:00","first_seen_at":"2026-11-11T23:29:38+00:00","fetched_at":"2026-11-11T23:29:38+00:00","note":null}],"documents":[],"disclosures":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}