{"id":"CVE-2026-121197","kind":"vulnerability","aliases":["CVE-2026-121197"],"related":[],"title":"Chrome on Mac: out-of-bounds read lets a web page read memory","description":"Out of bounds read in ANGLE in Google Chrome on on Mac prior to 157.0.8103.38 allowed a remote attacker to read memory outside the sandbox via a crafted HTML page. (Chromium security severity: High)","summary":"A flaw in ANGLE, the graphics layer in Google Chrome on Mac, lets a crafted HTML page read memory outside the browser sandbox. Chromium rates it High severity.","severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browser","chrome","macos","runtime"],"not_affected_if":["chrome-updated","non-mac-platform"],"how_to_check":"- Open Chrome and check the version under Chrome menu > About Google Chrome, or run `google-chrome --version` on Linux; compare with `157.0.8103.38`.","fix":"- Google Chrome on Mac: update to `157.0.8103.38` or later.","status":"open","published_at":"2026-11-03T21:17:28+00:00","first_seen_at":"2026-11-03T21:19:25+00:00","triaged_at":"2026-11-03T21:22:53+00:00","updated_at":"2026-11-03T21:22:53+00:00","category":"runtime","confidence":0.7,"triage":{"at":"2026-11-03T21:22:53Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome on Mac: update to `157.0.8103.38` or later.","reach":"internet","title":"Chrome on Mac: out-of-bounds read lets a web page read memory","impact":"medium","summary":"A flaw in ANGLE, the graphics layer in Google Chrome on Mac, lets a crafted HTML page read memory outside the browser sandbox. Chromium rates it High severity.","audience":"everyone","category":"runtime","nicknames":[],"who_cares":["chrome","macos","browser"],"confidence":0.7,"fix_status":"available","needs_auth":"no","worst_case":"Attacker reads browser process memory outside the sandbox via web page","analyst_note":"","how_to_check":"- Open Chrome and check the version under Chrome menu > About Google Chrome, or run `google-chrome --version` on Linux; compare with `157.0.8103.38`.","plain_action":"Update Google Chrome on your Mac to version 157.0.8103.38 or later.","needs_analyst":false,"not_affected_if":["chrome-updated","non-mac-platform"],"who_is_affected":"Chrome on macOS versions before 157.0.8103.38 is affected. A visitor only needs to open a malicious web page; no account or special setting is needed. Managed fleets of Macs should be checked for the Chrome version.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000661,"input_tokens":4109,"output_tokens":500,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-121197':17A,20A '-2026':16A,19A '157.0.8103.38':67C 'allow':68C 'angl':28B,58C 'attack':71C 'bound':7A,55C 'browser':21B,46B 'chrome':1A,22B,34B,61C 'chromium':48B,83C 'craft':39B,80C 'cve':15A,18A 'flaw':26B 'googl':33B,60C 'graphic':30B 'high':51B,86C 'html':40B,81C 'layer':31B 'let':9A,37B 'mac':3A,36B,64C 'maco':23B 'memori':14A,43B,74C 'out-of-bound':4A 'outsid':44B,75C 'page':12A,41B,82C 'prior':65C 'rate':49B 'read':8A,13A,42B,56C,73C 'remot':70C 'runtim':24B 'sandbox':47B,77C 'secur':84C 'sever':52B,85C 'via':78C 'web':11A","nicknames":[],"mitigations":[],"who_affected":"Chrome on macOS versions before 157.0.8103.38 is affected. A visitor only needs to open a malicious web page; no account or special setting is needed. Managed fleets of Macs should be checked for the Chrome version.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"everyone","plain_action":"Update Google Chrome on your Mac to version 157.0.8103.38 or later.","pkeys":[],"ptokens":[],"labels":["browser","chrome","high","macos","runtime"],"campaign_type":null,"first_public_at":"2026-11-03T21:17:28+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-121197","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121197","severity":null,"published_at":"2026-11-03T21:17:28+00:00","modified_at":"2026-11-03T21:17:28+00:00","first_seen_at":"2026-11-03T21:19:25+00:00","fetched_at":"2026-11-03T21:19:25+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"}