{"id":"CVE-2026-121042","kind":"vulnerability","aliases":["CVE-2026-121042"],"related":[],"title":"Chrome on Android: permissions check lets a web page bypass access restrictions","description":"Incorrect authorization in Permissions in Google Chrome on on Android prior to 157.0.8103.38 allowed a remote attacker to bypass system access restrictions via a crafted HTML page. (Chromium security severity: Medium)","summary":"Google Chrome on Android before 157.0.8103.38 has an authorization flaw in its Permissions component. A remote attacker can use a crafted HTML page to bypass system access restrictions on the device.","severity":"medium","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["android","chrome","mobile","other"],"not_affected_if":["chrome-updated","non-android-platforms"],"how_to_check":"- Check the Chrome version on the Android device: Settings > Google Chrome > About Chrome, or `chrome://version` in Chrome.\n- Confirm whether the version is below `157.0.8103.38`.","fix":"- Google Chrome on Android: 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":"2026-11-03T21:27:25+00:00","updated_at":"2026-11-03T21:27:25+00:00","category":"other","confidence":0.7,"triage":{"at":"2026-11-03T21:27:25Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome on Android: update to `157.0.8103.38` or later.","reach":"internet","title":"Chrome on Android: permissions check lets a web page bypass access restrictions","impact":"medium","summary":"Google Chrome on Android before 157.0.8103.38 has an authorization flaw in its Permissions component. A remote attacker can use a crafted HTML page to bypass system access restrictions on the device.","audience":"everyone","category":"other","nicknames":[],"who_cares":["chrome","android","mobile"],"confidence":0.7,"fix_status":"available","needs_auth":"no","worst_case":"Web page bypasses Android system access restrictions on the device","analyst_note":"","how_to_check":"- Check the Chrome version on the Android device: Settings > Google Chrome > About Chrome, or `chrome://version` in Chrome.\n- Confirm whether the version is below `157.0.8103.38`.","plain_action":"Update Google Chrome on your Android phone to version 157.0.8103.38 or later through the Play Store.","needs_analyst":false,"not_affected_if":["chrome-updated","non-android-platforms"],"who_is_affected":"Any Android device running Google Chrome older than 157.0.8103.38 is exposed when a user opens a malicious web page. Users on managed Chrome builds or with auto-updates enabled are likely already patched. unknown on whether a specific permission is bypassed beyond what the description states.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"medium"},"cost_usd":0.000679,"input_tokens":4103,"output_tokens":537,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-121042':15A,18A '-2026':14A,17A '157.0.8103.38':27B,65C 'access':11A,48B,73C 'allow':66C 'android':3A,19B,25B,62C 'attack':38B,69C 'author':30B,54C 'bypass':10A,46B,71C 'check':5A 'chrome':1A,20B,23B,59C 'chromium':80C 'compon':35B 'craft':42B,77C 'cve':13A,16A 'devic':52B 'flaw':31B 'googl':22B,58C 'html':43B,78C 'incorrect':53C 'let':6A 'medium':83C 'mobil':21B 'page':9A,44B,79C 'permiss':4A,34B,56C 'prior':63C 'remot':37B,68C 'restrict':12A,49B,74C 'secur':81C 'sever':82C 'system':47B,72C 'use':40B 'via':75C 'web':8A","nicknames":[],"mitigations":[],"who_affected":"Any Android device running Google Chrome older than 157.0.8103.38 is exposed when a user opens a malicious web page. Users on managed Chrome builds or with auto-updates enabled are likely already patched. unknown on whether a specific permission is bypassed beyond what the description states.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"everyone","plain_action":"Update Google Chrome on your Android phone to version 157.0.8103.38 or later through the Play Store.","pkeys":[],"ptokens":[],"labels":["android","chrome","medium","mobile","other"],"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-2026-121042","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121042","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"}