{"id":"CVE-2026-121219","kind":"vulnerability","aliases":["CVE-2026-121219"],"related":[],"title":"Chrome: GPU integer overflow lets a compromised renderer escape its sandbox","description":"Integer overflow in GPU in Google Chrome prior to 157.0.8103.38 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)","summary":"An integer overflow in Chrome's GPU component lets an attacker who has already compromised the renderer process potentially run code outside the browser sandbox. The attacker delivers the trigger through a crafted HTML page.","severity":"medium","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browsers","chrome","desktop","runtime"],"not_affected_if":["chrome-already-updated"],"how_to_check":"- Check the installed Chrome version in the browser's About page or with `google-chrome --version` on Linux.\n- Compare it against the fixed version listed in the sources.","fix":"- Google Chrome: update to `157.0.8103.38` or later.","status":"open","published_at":"2026-11-03T21:17:31+00:00","first_seen_at":"2026-11-03T21:19:27+00:00","triaged_at":"2026-11-03T21:22:33+00:00","updated_at":"2026-11-03T21:22:33+00:00","category":"runtime","confidence":0.7,"triage":{"at":"2026-11-03T21:22:33Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome: update to `157.0.8103.38` or later.","reach":"internet","title":"Chrome: GPU integer overflow lets a compromised renderer escape its sandbox","impact":"high","summary":"An integer overflow in Chrome's GPU component lets an attacker who has already compromised the renderer process potentially run code outside the browser sandbox. The attacker delivers the trigger through a crafted HTML page.","audience":"everyone","category":"runtime","nicknames":[],"who_cares":["chrome","browsers","desktop"],"confidence":0.7,"fix_status":"available","needs_auth":"no","worst_case":"Attacker runs arbitrary code outside the browser sandbox after renderer compromise.","analyst_note":"","how_to_check":"- Check the installed Chrome version in the browser's About page or with `google-chrome --version` on Linux.\n- Compare it against the fixed version listed in the sources.","plain_action":"Update Google Chrome to version 157.0.8103.38 or later.","needs_analyst":false,"not_affected_if":["chrome-already-updated"],"who_is_affected":"Anyone running Google Chrome before 157.0.8103.38 is exposed, since the flaw is in the browser's GPU code. The attack also requires a separate renderer compromise, so it is a chained exploit rather than a single-step attack. Managed fleets should confirm the version on every desktop browser.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"medium"},"cost_usd":0.000675,"input_tokens":4117,"output_tokens":527,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-121219':14A,17A '-2026':13A,16A '157.0.8103.38':66C 'allow':67C 'alreadi':35B 'arbitrari':80C 'attack':32B,48B,70C 'browser':18B,45B 'chrome':1A,19B,26B,63C 'chromium':90C 'code':42B,81C 'compon':29B 'compromis':7A,36B,73C 'craft':54B,87C 'cve':12A,15A 'deliv':49B 'desktop':20B 'escap':9A 'execut':79C 'googl':62C 'gpu':2A,28B,60C 'html':55B,88C 'integ':3A,23B,57C 'let':5A,30B 'medium':93C 'outsid':43B,82C 'overflow':4A,24B,58C 'page':56B,89C 'potenti':40B,78C 'prior':64C 'process':39B,76C 'remot':69C 'render':8A,38B,75C 'run':41B 'runtim':21B 'sandbox':11A,46B,84C 'secur':91C 'sever':92C 'trigger':51B 'via':85C","nicknames":[],"mitigations":[],"who_affected":"Anyone running Google Chrome before 157.0.8103.38 is exposed, since the flaw is in the browser's GPU code. The attack also requires a separate renderer compromise, so it is a chained exploit rather than a single-step attack. Managed fleets should confirm the version on every desktop browser.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"everyone","plain_action":"Update Google Chrome to version 157.0.8103.38 or later.","pkeys":[],"ptokens":[],"labels":["browsers","chrome","desktop","medium","runtime"],"campaign_type":null,"first_public_at":"2026-11-03T21:17:31+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-121219","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121219","severity":null,"published_at":"2026-11-03T21:17:31+00:00","modified_at":"2026-11-03T21:17:31+00:00","first_seen_at":"2026-11-03T21:19:27+00:00","fetched_at":"2026-11-03T21:19:27+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"}