{"id":"CVE-2026-126911","kind":"vulnerability","aliases":["CVE-2026-126911"],"related":[],"title":"Chrome: use-after-free in Accessibility lets a web page run code","description":"Use after free in Accessibility 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 memory-handling bug in the Accessibility component of Google Chrome before 157.0.8103.78 lets a crafted HTML page run arbitrary code inside the browser sandbox. Chromium rates it Critical.","severity":"critical","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browsers","chrome","desktop","runtime"],"not_affected_if":["up-to-date-chrome"],"how_to_check":"- Open Chrome and check the version under Settings > About Chrome, or run `google-chrome --version` on Linux.\n- Confirm the installed version is `157.0.8103.78` or later.","fix":"- Google Chrome: update to `157.0.8103.78` or later.","status":"open","published_at":"2026-11-11T23:17:21+00:00","first_seen_at":"2026-11-11T23:29:40+00:00","triaged_at":"2026-11-11T23:31:35+00:00","updated_at":"2026-11-11T23:31:35+00:00","category":"runtime","confidence":0.7,"triage":{"at":"2026-11-11T23:31:35Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome: update to `157.0.8103.78` or later.","reach":"internet","title":"Chrome: use-after-free in Accessibility lets a web page run code","impact":"high","summary":"A memory-handling bug in the Accessibility component of Google Chrome before 157.0.8103.78 lets a crafted HTML page run arbitrary code inside the browser sandbox. Chromium rates it Critical.","audience":"everyone","category":"runtime","nicknames":[],"who_cares":["chrome","browsers","desktop"],"confidence":0.7,"fix_status":"available","needs_auth":"no","worst_case":"Attacker runs arbitrary code inside the browser sandbox via a web page","analyst_note":"","how_to_check":"- Open Chrome and check the version under Settings > About Chrome, or run `google-chrome --version` on Linux.\n- Confirm the installed version is `157.0.8103.78` or later.","plain_action":"Update Google Chrome to version 157.0.8103.78 or later: open the browser menu, choose Help > About Google Chrome, and let it restart.","product_name":"","needs_analyst":false,"not_affected_if":["up-to-date-chrome"],"who_is_affected":"Anyone running Google Chrome older than 157.0.8103.78 who visits a web page that could be crafted by an attacker. The flaw is in the browser itself, so any desktop installation on an affected version is exposed; users on current builds can skip it.","user_interaction":"yes","product_ecosystem":"","needs_special_setup":"no","severity_if_unknown":"critical"},"cost_usd":0.00073,"input_tokens":4529,"output_tokens":554,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-126911':16A,19A '-2026':15A,18A '157.0.8103.78':37B,64C 'access':7A,31B,58C 'allow':65C 'arbitrari':44B,71C 'attack':68C 'browser':20B,48B 'bug':28B 'chrome':1A,21B,35B,61C 'chromium':50B,81C 'code':13A,45B,72C 'compon':32B 'craft':40B,78C 'critic':53B,84C 'cve':14A,17A 'desktop':22B 'execut':70C 'free':5A,56C 'googl':34B,60C 'handl':27B 'html':41B,79C 'insid':46B,73C 'let':8A,38B 'memori':26B 'memory-handl':25B 'page':11A,42B,80C 'prior':62C 'rate':51B 'remot':67C 'run':12A,43B 'runtim':23B 'sandbox':49B,75C 'secur':82C 'sever':83C 'use':3A,54C 'use-after-fre':2A 'via':76C 'web':10A","nicknames":[],"mitigations":[],"who_affected":"Anyone running Google Chrome older than 157.0.8103.78 who visits a web page that could be crafted by an attacker. The flaw is in the browser itself, so any desktop installation on an affected version is exposed; 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 157.0.8103.78 or later: open the browser menu, choose Help > About Google Chrome, and let it restart.","pkeys":[],"ptokens":[],"labels":["browsers","chrome","critical","desktop","runtime"],"campaign_type":null,"search_a":"'-126911':16A,19A '-2026':15A,18A 'access':7A 'chrome':1A 'code':13A 'cve':14A,17A 'free':5A 'let':8A 'page':11A 'run':12A 'use':3A 'use-after-fre':2A 'web':10A","search_b":"'157.0.8103.78':37B 'access':31B 'arbitrari':44B 'browser':20B,48B 'bug':28B 'chrome':21B,35B 'chromium':50B 'code':45B 'compon':32B 'craft':40B 'critic':53B 'desktop':22B 'googl':34B 'handl':27B 'html':41B 'insid':46B 'let':38B 'memori':26B 'memory-handl':25B 'page':42B 'rate':51B 'run':43B 'runtim':23B 'sandbox':49B","search_c":"'157.0.8103.78':64C 'access':58C 'allow':65C 'arbitrari':71C 'attack':68C 'chrome':61C 'chromium':81C 'code':72C 'craft':78C 'critic':84C 'execut':70C 'free':56C 'googl':60C 'html':79C 'insid':73C 'page':80C 'prior':62C 'remot':67C 'sandbox':75C 'secur':82C 'sever':83C 'use':54C 'via':76C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-11T23:17:21+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-126911","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126911","severity":null,"published_at":"2026-11-11T23:17:21+00:00","modified_at":"2026-11-11T23:17:21+00:00","first_seen_at":"2026-11-11T23:29:40+00:00","fetched_at":"2026-11-11T23:29:40+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"}