{"id":"CVE-2026-121044","kind":"vulnerability","aliases":["CVE-2026-121044"],"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 157.0.8103.38 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 Layout component of Google Chrome, before 157.0.8103.38, can be triggered by a crafted HTML page. A remote attacker can execute arbitrary code inside the browser sandbox.","severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browser","chrome","linux","macos","vendor","windows"],"not_affected_if":["chrome-updated"],"how_to_check":"- Open Chrome and check the version under Settings > About Chrome, or run `chrome --version` where the binary is available\n- Compare the installed version against `157.0.8103.38`","fix":"- Google Chrome: update to `157.0.8103.38` or later","status":"open","published_at":"2026-11-03T21:17:08+00:00","first_seen_at":"2026-11-03T21:19:09+00:00","triaged_at":"2026-11-03T21:27:23+00:00","updated_at":"2026-11-03T21:27:23+00:00","category":"vendor","confidence":0.8,"triage":{"at":"2026-11-03T21:27:23Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome: update to `157.0.8103.38` 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 157.0.8103.38, can be triggered by a crafted HTML page. A remote attacker can execute arbitrary code inside the browser sandbox.","audience":"everyone","category":"vendor","nicknames":[],"who_cares":["chrome","browser","windows","macos","linux"],"confidence":0.8,"fix_status":"available","needs_auth":"no","worst_case":"Attacker runs code inside the browser sandbox after a visit","analyst_note":"","how_to_check":"- Open Chrome and check the version under Settings > About Chrome, or run `chrome --version` where the binary is available\n- Compare the installed version against `157.0.8103.38`","plain_action":"Update Google Chrome to version 157.0.8103.38 or later: Chrome menu > Help > About Google Chrome.","needs_analyst":false,"not_affected_if":["chrome-updated"],"who_is_affected":"Anyone browsing with Google Chrome before 157.0.8103.38 is exposed when they open a malicious HTML page. Managed fleets running older Chrome builds should be looked at first. Users on current builds can skip it.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000667,"input_tokens":4101,"output_tokens":513,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-121044':16A,19A '-2026':15A,18A '157.0.8103.38':40B,70C 'allow':71C 'arbitrari':54B,77C 'attack':51B,74C 'browser':20B,58B 'bug':31B 'chrome':1A,21B,38B,67C 'chromium':87C 'code':13A,55B,78C 'compon':35B 'craft':10A,46B,84C 'cve':14A,17A 'execut':53B,76C 'free':5A,30B,62C 'googl':37B,66C 'high':90C 'html':47B,85C 'insid':56B,79C 'layout':7A,34B,64C 'let':8A 'linux':22B 'maco':23B 'page':11A,48B,86C 'prior':68C 'remot':50B,73C 'run':12A 'sandbox':59B,81C 'secur':88C 'sever':89C 'trigger':43B 'use':3A,28B,60C 'use-after-fre':2A,27B 'vendor':24B 'via':82C 'window':25B","nicknames":[],"mitigations":[],"who_affected":"Anyone browsing with Google Chrome before 157.0.8103.38 is exposed when they open a malicious HTML page. Managed fleets running older Chrome builds should be looked at first. Users on current builds can skip it.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"everyone","plain_action":"Update Google Chrome to version 157.0.8103.38 or later: Chrome menu > Help > About Google Chrome.","pkeys":[],"ptokens":[],"labels":["browser","chrome","high","linux","macos","vendor","windows"],"campaign_type":null,"first_public_at":"2026-11-03T21:17:08+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-121044","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121044","severity":null,"published_at":"2026-11-03T21:17:08+00:00","modified_at":"2026-11-03T21:17:08+00:00","first_seen_at":"2026-11-03T21:19:09+00:00","fetched_at":"2026-11-03T21:19:09+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"}