{"id":"CVE-2026-126902","kind":"vulnerability","aliases":["CVE-2026-126902"],"related":[],"title":"Chrome on Mac: flaw lets a compromised renderer run code outside sandbox","description":"Incorrect reference resolution in Browser in Google Chrome on on Mac prior to 157.0.8103.78 allowed a remote attacker who had compromised the renderer process to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)","summary":"Google Chrome on macOS has an incorrect reference resolution flaw in its browser component. A remote attacker who has already compromised the renderer process can run arbitrary code outside the sandbox by serving a crafted HTML page.","severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browser","chrome","macos","package"],"not_affected_if":["chrome-updated","non-mac-platform"],"how_to_check":"- Check the Chrome version on the Mac: open Chrome's About page or run `/Applications/Google Chrome.app/Contents/MacOS/Google Chrome --version`\n- Compare the installed version against `157.0.8103.78`; anything older is in the affected range","fix":"- Google Chrome on Mac: update to `157.0.8103.78` or later","status":"open","published_at":"2026-11-11T23:17:20+00:00","first_seen_at":"2026-11-11T23:29:40+00:00","triaged_at":"2026-11-11T23:31:52+00:00","updated_at":"2026-11-11T23:31:52+00:00","category":"package","confidence":0.7,"triage":{"at":"2026-11-11T23:31:52Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome on Mac: update to `157.0.8103.78` or later","reach":"internet","title":"Chrome on Mac: flaw lets a compromised renderer run code outside sandbox","impact":"high","summary":"Google Chrome on macOS has an incorrect reference resolution flaw in its browser component. A remote attacker who has already compromised the renderer process can run arbitrary code outside the sandbox by serving a crafted HTML page.","audience":"everyone","category":"package","nicknames":[],"who_cares":["chrome","macos","browser"],"confidence":0.7,"fix_status":"available","needs_auth":"no","worst_case":"Attacker runs arbitrary code outside the browser sandbox on the Mac","analyst_note":"","how_to_check":"- Check the Chrome version on the Mac: open Chrome's About page or run `/Applications/Google Chrome.app/Contents/MacOS/Google Chrome --version`\n- Compare the installed version against `157.0.8103.78`; anything older is in the affected range","plain_action":"Update Google Chrome on your Mac to version 157.0.8103.78 or later.","product_name":"","needs_analyst":false,"not_affected_if":["chrome-updated","non-mac-platform"],"who_is_affected":"Mac users running Google Chrome older than 157.0.8103.78. Exploitation requires a renderer compromise first, so the flaw is a sandbox escape that chains with another bug. Systems on other platforms are not named in the source.","user_interaction":"yes","product_ecosystem":"","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000738,"input_tokens":4549,"output_tokens":566,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-126902':15A,18A '-2026':14A,17A '157.0.8103.78':73C 'allow':74C 'alreadi':42B 'arbitrari':49B,86C 'attack':39B,77C 'browser':19B,35B,64C 'chrome':1A,20B,24B,67C 'chromium':96C 'code':10A,50B,87C 'compon':36B 'compromis':7A,43B,80C 'craft':57B,93C 'cve':13A,16A 'execut':85C 'flaw':4A,32B 'googl':23B,66C 'high':99C 'html':58B,94C 'incorrect':29B,60C 'let':5A 'mac':3A,70C 'maco':21B,26B 'outsid':11A,51B,88C 'packag':22B 'page':59B,95C 'prior':71C 'process':46B,83C 'refer':30B,61C 'remot':38B,76C 'render':8A,45B,82C 'resolut':31B,62C 'run':9A,48B 'sandbox':12A,53B,90C 'secur':97C 'serv':55B 'sever':98C 'via':91C","nicknames":[],"mitigations":[],"who_affected":"Mac users running Google Chrome older than 157.0.8103.78. Exploitation requires a renderer compromise first, so the flaw is a sandbox escape that chains with another bug. Systems on other platforms are not named in the source.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"everyone","plain_action":"Update Google Chrome on your Mac to version 157.0.8103.78 or later.","pkeys":[],"ptokens":[],"labels":["browser","chrome","high","macos","package"],"campaign_type":null,"search_a":"'-126902':15A,18A '-2026':14A,17A 'chrome':1A 'code':10A 'compromis':7A 'cve':13A,16A 'flaw':4A 'let':5A 'mac':3A 'outsid':11A 'render':8A 'run':9A 'sandbox':12A","search_b":"'alreadi':42B 'arbitrari':49B 'attack':39B 'browser':19B,35B 'chrome':20B,24B 'code':50B 'compon':36B 'compromis':43B 'craft':57B 'flaw':32B 'googl':23B 'html':58B 'incorrect':29B 'maco':21B,26B 'outsid':51B 'packag':22B 'page':59B 'process':46B 'refer':30B 'remot':38B 'render':45B 'resolut':31B 'run':48B 'sandbox':53B 'serv':55B","search_c":"'157.0.8103.78':73C 'allow':74C 'arbitrari':86C 'attack':77C 'browser':64C 'chrome':67C 'chromium':96C 'code':87C 'compromis':80C 'craft':93C 'execut':85C 'googl':66C 'high':99C 'html':94C 'incorrect':60C 'mac':70C 'outsid':88C 'page':95C 'prior':71C 'process':83C 'refer':61C 'remot':76C 'render':82C 'resolut':62C 'sandbox':90C 'secur':97C 'sever':98C 'via':91C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-11T23:17:20+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-126902","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126902","severity":null,"published_at":"2026-11-11T23:17:20+00:00","modified_at":"2026-11-11T23:17:20+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"}