{"id":"CVE-2026-121033","kind":"vulnerability","aliases":["CVE-2026-121033"],"related":[],"title":"Chrome on Android: uninitialized GPU memory lets a compromised renderer read memory","description":"Uninitialized resource in GPU in Google Chrome on on Android prior to 157.0.8103.38 allowed a remote attacker who had compromised the renderer process to read memory outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)","summary":"Google Chrome on Android before 157.0.8103.38 has an uninitialized resource bug in its GPU component. A remote attacker who already compromised the renderer process can read memory outside the browser sandbox through a crafted HTML page.","severity":"medium","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["android","chrome","other"],"not_affected_if":["chrome-updated","non-android"],"how_to_check":"- Check the Chrome version on the Android device in Chrome settings (About Chrome) and compare it with `157.0.8103.38`.","fix":"- Google Chrome on Android: `157.0.8103.38`","status":"open","published_at":"2026-11-03T21:17:06+00:00","first_seen_at":"2026-11-03T21:19:08+00:00","triaged_at":"2026-11-03T21:27:34+00:00","updated_at":"2026-11-03T21:27:34+00:00","category":"other","confidence":0.6,"triage":{"at":"2026-11-03T21:27:34Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome on Android: `157.0.8103.38`","reach":"internet","title":"Chrome on Android: uninitialized GPU memory lets a compromised renderer read memory","impact":"medium","summary":"Google Chrome on Android before 157.0.8103.38 has an uninitialized resource bug in its GPU component. A remote attacker who already compromised the renderer process can read memory outside the browser sandbox through a crafted HTML page.","audience":"everyone","category":"other","nicknames":[],"who_cares":["chrome","android"],"confidence":0.6,"fix_status":"available","needs_auth":"no","worst_case":"attacker reads browser process memory outside the sandbox","analyst_note":"","how_to_check":"- Check the Chrome version on the Android device in Chrome settings (About Chrome) and compare it with `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"],"who_is_affected":"Only Chrome on Android before 157.0.8103.38 is named. The attacker must first compromise the renderer process, so this is a second-stage flaw that needs another bug to chain with. Desktop and other platforms are not named in the sources.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"medium"},"cost_usd":0.000661,"input_tokens":4116,"output_tokens":498,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-121033':15A,18A '-2026':14A,17A '157.0.8103.38':26B,69C 'allow':70C 'alreadi':40B 'android':3A,19B,24B,66C 'attack':38B,73C 'browser':50B 'bug':31B 'chrome':1A,20B,22B,63C 'chromium':91C 'compon':35B 'compromis':9A,41B,76C 'craft':54B,88C 'cve':13A,16A 'googl':21B,62C 'gpu':5A,34B,60C 'html':55B,89C 'let':7A 'medium':94C 'memori':6A,12A,47B,82C 'outsid':48B,83C 'page':56B,90C 'prior':67C 'process':44B,79C 'read':11A,46B,81C 'remot':37B,72C 'render':10A,43B,78C 'resourc':30B,58C 'sandbox':51B,85C 'secur':92C 'sever':93C 'uniniti':4A,29B,57C 'via':86C","nicknames":[],"mitigations":[],"who_affected":"Only Chrome on Android before 157.0.8103.38 is named. The attacker must first compromise the renderer process, so this is a second-stage flaw that needs another bug to chain with. Desktop and other platforms are not named in the sources.","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","other"],"campaign_type":null,"first_public_at":"2026-11-03T21:17:06+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-121033","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121033","severity":null,"published_at":"2026-11-03T21:17:06+00:00","modified_at":"2026-11-03T21:17:06+00:00","first_seen_at":"2026-11-03T21:19:08+00:00","fetched_at":"2026-11-03T21:19:08+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"}