{"id":"CVE-2026-121098","kind":"vulnerability","aliases":["CVE-2026-121098"],"related":[],"title":"Chrome: GPU state flaw lets a compromised renderer escape the sandbox","description":"Improper state validation 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: High)","summary":"Google Chrome's GPU component does not validate state properly before 157.0.8103.38. A remote attacker who has already compromised the renderer process can use a crafted HTML page to potentially run code outside the browser sandbox.","severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browser","chrome","desktop","runtime"],"not_affected_if":["chrome-updated"],"how_to_check":"- Open Chrome and check the version under Help > About Google Chrome; it should be `157.0.8103.38` or later.","fix":"- Google Chrome: move to `157.0.8103.38` or later.","status":"open","published_at":"2026-11-03T21:17:15+00:00","first_seen_at":"2026-11-03T21:19:13+00:00","triaged_at":"2026-11-03T21:25:21+00:00","updated_at":"2026-11-03T21:25:21+00:00","category":"runtime","confidence":0.6,"triage":{"at":"2026-11-03T21:25:21Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome: move to `157.0.8103.38` or later.","reach":"internet","title":"Chrome: GPU state flaw lets a compromised renderer escape the sandbox","impact":"high","summary":"Google Chrome's GPU component does not validate state properly before 157.0.8103.38. A remote attacker who has already compromised the renderer process can use a crafted HTML page to potentially run code outside the browser sandbox.","audience":"everyone","category":"runtime","nicknames":[],"who_cares":["chrome","desktop","browser"],"confidence":0.6,"fix_status":"available","needs_auth":"no","worst_case":"attacker runs code outside the browser sandbox on the machine","analyst_note":"Confirm the fixed version and any Chromium security advisory details at the NVD page; sources give no exploitation status beyond the description.","how_to_check":"- Open Chrome and check the version under Help > About Google Chrome; it should be `157.0.8103.38` or later.\n- unknown","plain_action":"Update Google Chrome to version 157.0.8103.38 or later: Chrome menu > Help > About Google Chrome.","needs_analyst":true,"not_affected_if":["chrome-updated"],"who_is_affected":"Anyone running Google Chrome before 157.0.8103.38 is exposed, since the flaw sits in the browser's GPU code. Exploitation requires a separate renderer compromise first, so the chain is more involved than a single bug. Systems that run no Chrome build of that range can skip it.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000693,"input_tokens":4111,"output_tokens":563,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-121098':14A,17A '-2026':13A,16A '157.0.8103.38':33B,68C 'allow':69C 'alreadi':39B 'arbitrari':82C 'attack':36B,72C 'browser':18B,56B 'chrome':1A,19B,23B,65C 'chromium':92C 'code':53B,83C 'compon':26B 'compromis':7A,40B,75C 'craft':47B,89C 'cve':12A,15A 'desktop':20B 'escap':9A 'execut':81C 'flaw':4A 'googl':22B,64C 'gpu':2A,25B,62C 'high':95C 'html':48B,90C 'improp':58C 'let':5A 'outsid':54B,84C 'page':49B,91C 'potenti':51B,80C 'prior':66C 'process':43B,78C 'proper':31B 'remot':35B,71C 'render':8A,42B,77C 'run':52B 'runtim':21B 'sandbox':11A,57B,86C 'secur':93C 'sever':94C 'state':3A,30B,59C 'use':45B 'valid':29B,60C 'via':87C","nicknames":[],"mitigations":[],"who_affected":"Anyone running Google Chrome before 157.0.8103.38 is exposed, since the flaw sits in the browser's GPU code. Exploitation requires a separate renderer compromise first, so the chain is more involved than a single bug. Systems that run no Chrome build of that range can skip it.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"everyone","plain_action":"Update Google Chrome to version 157.0.8103.38 or later: Chrome menu > Help > About Google Chrome.","pkeys":[],"ptokens":[],"labels":["browser","chrome","desktop","high","runtime"],"campaign_type":null,"first_public_at":"2026-11-03T21:17:15+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-121098","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121098","severity":null,"published_at":"2026-11-03T21:17:15+00:00","modified_at":"2026-11-03T21:17:15+00:00","first_seen_at":"2026-11-03T21:19:13+00:00","fetched_at":"2026-11-03T21:19:13+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"}