{"id":"CVE-2026-121196","kind":"vulnerability","aliases":["CVE-2026-121196"],"related":[],"title":"Chrome on iOS: crafted web page bypasses restrictions into privileged page","description":"Privilege elevation in Mobile in Google Chrome on on iOS prior to 157.0.8103.38 allowed a remote attacker to bypass system access restrictions into a privileged page via a crafted HTML page. (Chromium security severity: Medium)","summary":"Google Chrome on iOS before 157.0.8103.38 has a privilege elevation flaw in its mobile browser. A remote attacker can use a crafted HTML page to bypass system access restrictions and reach a privileged page.","severity":"medium","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["chrome","ios","mobile-browser","runtime"],"not_affected_if":["chrome-updated"],"how_to_check":"- Open Chrome on the iPhone or iPad and check the version under Chrome menu > Settings > Google Chrome > About Chrome (version shown in the sources as `157.0.8103.38` or later means patched).\n- Check managed devices with your mobile device management tool for the installed Chrome build.","fix":"- Chrome on iOS: move 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":0.6,"triage":{"at":"2026-11-03T21:22:53Z","model":"claude-haiku-5-5","output":{"fix":"- Chrome on iOS: move to `157.0.8103.38` or later.","reach":"internet","title":"Chrome on iOS: crafted web page bypasses restrictions into privileged page","impact":"medium","summary":"Google Chrome on iOS before 157.0.8103.38 has a privilege elevation flaw in its mobile browser. A remote attacker can use a crafted HTML page to bypass system access restrictions and reach a privileged page.","audience":"everyone","category":"runtime","nicknames":[],"who_cares":["chrome","ios","mobile-browser"],"confidence":0.6,"fix_status":"available","needs_auth":"no","worst_case":"attacker reaches privileged browser page, bypassing system access restrictions","analyst_note":"","how_to_check":"- Open Chrome on the iPhone or iPad and check the version under Chrome menu > Settings > Google Chrome > About Chrome (version shown in the sources as `157.0.8103.38` or later means patched).\n- Check managed devices with your mobile device management tool for the installed Chrome build.","plain_action":"Update Google Chrome on your iPhone or iPad to version 157.0.8103.38 or later through the App Store.","needs_analyst":false,"not_affected_if":["chrome-updated"],"who_is_affected":"Anyone using Google Chrome on iOS before version 157.0.8103.38 who opens untrusted web pages is exposed. Browsing on managed devices should be checked against the installed Chrome build; the sources do not describe any special configuration needed.","user_interaction":"yes","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000697,"input_tokens":4116,"output_tokens":571,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-121196':14A,17A '-2026':13A,16A '157.0.8103.38':29B,70C 'access':51B,78C 'allow':71C 'attack':41B,74C 'browser':22B,38B 'bypass':7A,49B,76C 'chrome':1A,18B,25B,64C 'chromium':89C 'craft':4A,45B,86C 'cve':12A,15A 'elev':33B,59C 'flaw':34B 'googl':24B,63C 'html':46B,87C 'io':3A,19B,27B,67C 'medium':92C 'mobil':21B,37B,61C 'mobile-brows':20B 'page':6A,11A,47B,57B,83C,88C 'prior':68C 'privileg':10A,32B,56B,58C,82C 'reach':54B 'remot':40B,73C 'restrict':8A,52B,79C 'runtim':23B 'secur':90C 'sever':91C 'system':50B,77C 'use':43B 'via':84C 'web':5A","nicknames":[],"mitigations":[],"who_affected":"Anyone using Google Chrome on iOS before version 157.0.8103.38 who opens untrusted web pages is exposed. Browsing on managed devices should be checked against the installed Chrome build; the sources do not describe any special configuration needed.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"everyone","plain_action":"Update Google Chrome on your iPhone or iPad to version 157.0.8103.38 or later through the App Store.","pkeys":[],"ptokens":[],"labels":["chrome","ios","medium","mobilebrowser","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-2026-121196","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121196","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"}