{"id":"CVE-2026-121246","kind":"vulnerability","aliases":["CVE-2026-121246"],"related":[],"title":"Chrome on Android: WebGL use-after-free lets a crafted page run code","description":"Use after free in WebGL 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: Critical)","summary":"A use-after-free bug in WebGL in Google Chrome for Android lets a remote attacker run arbitrary code outside the browser sandbox via a crafted HTML page. Chromium rates it Critical.","severity":"critical","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["android","chrome","mobile","other","webgl"],"not_affected_if":["chrome-updated","non-android-platform"],"how_to_check":"- Open Chrome on the Android device and check the version under Settings > About Chrome.\n- Compare the installed version with `157.0.8103.38`.","fix":"- Google Chrome on Android: `157.0.8103.38` or later.","status":"open","published_at":"2026-11-03T21:17:35+00:00","first_seen_at":"2026-11-03T21:19:29+00:00","triaged_at":"2026-11-03T21:21:04+00:00","updated_at":"2026-11-03T21:21:04+00:00","category":"other","confidence":0.8,"triage":{"at":"2026-11-03T21:21:04Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome on Android: `157.0.8103.38` or later.","reach":"internet","title":"Chrome on Android: WebGL use-after-free lets a crafted page run code","impact":"high","summary":"A use-after-free bug in WebGL in Google Chrome for Android lets a remote attacker run arbitrary code outside the browser sandbox via a crafted HTML page. Chromium rates it Critical.","audience":"everyone","category":"other","nicknames":[],"who_cares":["chrome","android","webgl","mobile"],"confidence":0.8,"fix_status":"available","needs_auth":"no","worst_case":"Attacker runs arbitrary code outside the browser sandbox on the phone","analyst_note":"","how_to_check":"- Open Chrome on the Android device and check the version under Settings > About Chrome.\n- Compare the installed version with `157.0.8103.38`.","plain_action":"Update Chrome on your Android phone to version 157.0.8103.38 or later from the Play Store.","needs_analyst":false,"not_affected_if":["chrome-updated","non-android-platform"],"who_is_affected":"Anyone using Google Chrome on Android before version 157.0.8103.38 who visits a page an attacker controls. Exposure comes from visiting a crafted web page, so no account or special setting is described in the sources. Devices on newer Chrome builds are not affected.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"critical"},"cost_usd":0.00067,"input_tokens":4108,"output_tokens":518,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-121246':17A,20A '-2026':16A,19A '157.0.8103.38':72C 'allow':73C 'android':3A,21B,38B,69C 'arbitrari':44B,80C 'attack':42B,76C 'browser':48B 'bug':31B 'chrome':1A,22B,36B,66C 'chromium':55B,90C 'code':14A,45B,81C 'craft':11A,52B,87C 'critic':58B,93C 'cve':15A,18A 'execut':79C 'free':8A,30B,61C 'googl':35B,65C 'html':53B,88C 'let':9A,39B 'mobil':23B 'outsid':46B,82C 'page':12A,54B,89C 'potenti':78C 'prior':70C 'rate':56B 'remot':41B,75C 'run':13A,43B 'sandbox':49B,84C 'secur':91C 'sever':92C 'use':6A,28B,59C 'use-after-fre':5A,27B 'via':50B,85C 'webgl':4A,25B,33B,63C","nicknames":[],"mitigations":[],"who_affected":"Anyone using Google Chrome on Android before version 157.0.8103.38 who visits a page an attacker controls. Exposure comes from visiting a crafted web page, so no account or special setting is described in the sources. Devices on newer Chrome builds are not affected.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"everyone","plain_action":"Update Chrome on your Android phone to version 157.0.8103.38 or later from the Play Store.","pkeys":[],"ptokens":[],"labels":["android","chrome","critical","mobile","other","webgl"],"campaign_type":null,"first_public_at":"2026-11-03T21:17:35+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-121246","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121246","severity":null,"published_at":"2026-11-03T21:17:35+00:00","modified_at":"2026-11-03T21:17:35+00:00","first_seen_at":"2026-11-03T21:19:29+00:00","fetched_at":"2026-11-03T21:19:29+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"}