{"id":"CVE-2026-121234","kind":"vulnerability","aliases":["CVE-2026-121234"],"related":[],"title":"Chrome on Android: Contacts flaw lets a crafted web page escape sandbox","description":"Privilege elevation in Contacts in Google Chrome on on Android prior to 157.0.8103.38 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)","summary":"A flaw in the Contacts feature of Google Chrome on Android lets a remote attacker run code outside the browser sandbox when a victim opens a crafted HTML page. Chromium rates it Medium severity.","severity":"medium","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["android","chrome","mobile","package"],"not_affected_if":["chrome-updated","non-android"],"how_to_check":"- Open Chrome on the Android device and check the version under Settings > About Chrome.\n- Compare the version with `157.0.8103.38`; anything older is listed as affected.","fix":"- Google Chrome for Android: `157.0.8103.38` or later","status":"open","published_at":"2026-11-03T21:17:33+00:00","first_seen_at":"2026-11-03T21:19:28+00:00","triaged_at":"2026-11-03T21:21:16+00:00","updated_at":"2026-11-03T21:21:16+00:00","category":"package","confidence":0.6,"triage":{"at":"2026-11-03T21:21:16Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome for Android: `157.0.8103.38` or later","reach":"internet","title":"Chrome on Android: Contacts flaw lets a crafted web page escape sandbox","impact":"high","summary":"A flaw in the Contacts feature of Google Chrome on Android lets a remote attacker run code outside the browser sandbox when a victim opens a crafted HTML page. Chromium rates it Medium severity.","audience":"everyone","category":"package","nicknames":[],"who_cares":["chrome","android","mobile"],"confidence":0.6,"fix_status":"available","needs_auth":"no","worst_case":"Attacker runs arbitrary code outside the browser sandbox","analyst_note":"","how_to_check":"- Open Chrome on the Android device and check the version under Settings > About Chrome.\n- Compare the version with `157.0.8103.38`; anything older is listed as affected.","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"],"who_is_affected":"Anyone running Google Chrome on Android before version 157.0.8103.38 is affected, and exploitation requires a victim to open a crafted HTML page. Desktop Chrome and other browsers are not named by the source. unknown on whether the Contacts feature must be in use.","user_interaction":"yes","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000674,"input_tokens":4114,"output_tokens":525,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-121234':15A,18A '-2026':14A,17A '157.0.8103.38':69C 'allow':70C 'android':3A,19B,33B,66C 'arbitrari':77C 'attack':37B,73C 'browser':42B 'chrome':1A,20B,31B,63C 'chromium':52B,87C 'code':39B,78C 'contact':4A,27B,60C 'craft':8A,49B,84C 'cve':13A,16A 'elev':58C 'escap':11A 'execut':76C 'featur':28B 'flaw':5A,24B 'googl':30B,62C 'html':50B,85C 'let':6A,34B 'medium':55B,90C 'mobil':21B 'open':47B 'outsid':40B,79C 'packag':22B 'page':10A,51B,86C 'potenti':75C 'prior':67C 'privileg':57C 'rate':53B 'remot':36B,72C 'run':38B 'sandbox':12A,43B,81C 'secur':88C 'sever':56B,89C 'via':82C 'victim':46B 'web':9A","nicknames":[],"mitigations":[],"who_affected":"Anyone running Google Chrome on Android before version 157.0.8103.38 is affected, and exploitation requires a victim to open a crafted HTML page. Desktop Chrome and other browsers are not named by the source. unknown on whether the Contacts feature must be in use.","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","package"],"campaign_type":null,"first_public_at":"2026-11-03T21:17:33+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-121234","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121234","severity":null,"published_at":"2026-11-03T21:17:33+00:00","modified_at":"2026-11-03T21:17:33+00:00","first_seen_at":"2026-11-03T21:19:28+00:00","fetched_at":"2026-11-03T21:19:28+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"}