{"id":"CVE-2026-121158","kind":"vulnerability","aliases":["CVE-2026-121158"],"related":[],"title":"Chrome: crafted web page leaks sensitive data through Paint component","description":"Information leak in Paint in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to obtain sensitive information via a crafted HTML page. (Chromium security severity: Medium)","summary":"A flaw in the Paint component of Google Chrome lets a remote attacker obtain sensitive information when a victim visits a crafted HTML page. Chromium rates it Medium severity.","severity":"medium","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browser","chrome","desktop","mobile","runtime"],"not_affected_if":["chrome-updated"],"how_to_check":"- Open Chrome and check the version under Help > About Google Chrome, or run `chrome --version` on the command line.\n- Compare the installed version against `157.0.8103.38`.","fix":"- Google Chrome: move to `157.0.8103.38` or later.","status":"open","published_at":"2026-11-03T21:17:23+00:00","first_seen_at":"2026-11-03T21:19:23+00:00","triaged_at":"2026-11-03T21:23:30+00:00","updated_at":"2026-11-03T21:23:30+00:00","category":"runtime","confidence":0.7,"triage":{"at":"2026-11-03T21:23:30Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome: move to `157.0.8103.38` or later.","reach":"internet","title":"Chrome: crafted web page leaks sensitive data through Paint component","impact":"low","summary":"A flaw in the Paint component of Google Chrome lets a remote attacker obtain sensitive information when a victim visits a crafted HTML page. Chromium rates it Medium severity.","audience":"everyone","category":"runtime","nicknames":[],"who_cares":["chrome","browser","desktop","mobile"],"confidence":0.7,"fix_status":"available","needs_auth":"no","worst_case":"Sensitive information readable by an attacker from a visited page","analyst_note":"","how_to_check":"- Open Chrome and check the version under Help > About Google Chrome, or run `chrome --version` on the command line.\n- Compare the installed version against `157.0.8103.38`.","plain_action":"Update Google Chrome to version 157.0.8103.38 or later: Chrome menu > Help > About Google Chrome.","needs_analyst":false,"not_affected_if":["chrome-updated"],"who_is_affected":"Any desktop or mobile Chrome install older than 157.0.8103.38 is exposed when a user opens a malicious page. Servers and managed Chrome fleets should check their installed build; the page must be visited, so exposure depends on browsing.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"medium"},"cost_usd":0.000663,"input_tokens":4095,"output_tokens":507,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-121158':13A,16A '-2026':12A,15A '157.0.8103.38':60C 'allow':61C 'attack':34B,64C 'browser':17B 'chrome':1A,18B,30B,57C 'chromium':46B,74C 'compon':10A,27B 'craft':2A,43B,71C 'cve':11A,14A 'data':7A 'desktop':19B 'flaw':23B 'googl':29B,56C 'html':44B,72C 'inform':37B,51C,68C 'leak':5A,52C 'let':31B 'medium':49B,77C 'mobil':20B 'obtain':35B,66C 'page':4A,45B,73C 'paint':9A,26B,54C 'prior':58C 'rate':47B 'remot':33B,63C 'runtim':21B 'secur':75C 'sensit':6A,36B,67C 'sever':50B,76C 'via':69C 'victim':40B 'visit':41B 'web':3A","nicknames":[],"mitigations":[],"who_affected":"Any desktop or mobile Chrome install older than 157.0.8103.38 is exposed when a user opens a malicious page. Servers and managed Chrome fleets should check their installed build; the page must be visited, so exposure depends on browsing.","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: Chrome menu > Help > About Google Chrome.","pkeys":[],"ptokens":[],"labels":["browser","chrome","desktop","medium","mobile","runtime"],"campaign_type":null,"first_public_at":"2026-11-03T21:17:23+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-121158","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121158","severity":null,"published_at":"2026-11-03T21:17:23+00:00","modified_at":"2026-11-03T21:17:23+00:00","first_seen_at":"2026-11-03T21:19:23+00:00","fetched_at":"2026-11-03T21:19:23+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"}