{"id":"CVE-2026-121086","kind":"vulnerability","aliases":["CVE-2026-121086"],"related":[],"title":"Chrome: Skia buffer overflow lets a crafted web page run code","description":"Buffer overflow in Skia in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)","summary":"A memory overflow in Skia, the graphics library inside Google Chrome, can be triggered by a crafted HTML page. A remote attacker who gets a user to open that page can run code outside the browser sandbox.","severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browsers","chrome","linux","macos","runtime","windows"],"not_affected_if":["chrome-updated"],"how_to_check":"- Check the Chrome version under Chrome menu > Help > About Google Chrome, or run `google-chrome --version` on Linux\n- Compare the installed version with `157.0.8103.38`","fix":"- Google Chrome: move to `157.0.8103.38` or later","status":"open","published_at":"2026-11-03T21:17:14+00:00","first_seen_at":"2026-11-03T21:19:12+00:00","triaged_at":"2026-11-03T21:25:35+00:00","updated_at":"2026-11-03T21:25:35+00:00","category":"runtime","confidence":0.7,"triage":{"at":"2026-11-03T21:25:35Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome: move to `157.0.8103.38` or later","reach":"internet","title":"Chrome: Skia buffer overflow lets a crafted web page run code","impact":"high","summary":"A memory overflow in Skia, the graphics library inside Google Chrome, can be triggered by a crafted HTML page. A remote attacker who gets a user to open that page can run code outside the browser sandbox.","audience":"everyone","category":"runtime","nicknames":[],"who_cares":["chrome","browsers","windows","macos","linux"],"confidence":0.7,"fix_status":"available","needs_auth":"no","worst_case":"Attacker runs code outside the browser sandbox on the user's machine","analyst_note":"","how_to_check":"- Check the Chrome version under Chrome menu > Help > About Google Chrome, or run `google-chrome --version` on Linux\n- Compare the installed version with `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":"Anyone running Google Chrome before 157.0.8103.38 who opens a malicious web page is exposed. Chromium-based browsers that bundle the same Skia code may also be affected, and the vendor's patch decides their timing. Managed fleets should check Chrome versions across endpoints.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000681,"input_tokens":4107,"output_tokens":540,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-121086':14A,17A '-2026':13A,16A '157.0.8103.38':70C 'allow':71C 'arbitrari':77C 'attack':45B,74C 'browser':18B,59B 'buffer':3A,61C 'chrome':1A,19B,34B,67C 'chromium':87C 'code':11A,56B,78C 'craft':7A,40B,84C 'cve':12A,15A 'execut':76C 'get':47B 'googl':33B,66C 'graphic':30B 'high':90C 'html':41B,85C 'insid':32B 'let':5A 'librari':31B 'linux':20B 'maco':21B 'memori':25B 'open':51B 'outsid':57B,79C 'overflow':4A,26B,62C 'page':9A,42B,53B,86C 'prior':68C 'remot':44B,73C 'run':10A,55B 'runtim':22B 'sandbox':60B,81C 'secur':88C 'sever':89C 'skia':2A,28B,64C 'trigger':37B 'user':49B 'via':82C 'web':8A 'window':23B","nicknames":[],"mitigations":[],"who_affected":"Anyone running Google Chrome before 157.0.8103.38 who opens a malicious web page is exposed. Chromium-based browsers that bundle the same Skia code may also be affected, and the vendor's patch decides their timing. Managed fleets should check Chrome versions across endpoints.","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":["browsers","chrome","high","linux","macos","runtime","windows"],"campaign_type":null,"first_public_at":"2026-11-03T21:17:14+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-121086","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121086","severity":null,"published_at":"2026-11-03T21:17:14+00:00","modified_at":"2026-11-03T21:17:14+00:00","first_seen_at":"2026-11-03T21:19:12+00:00","fetched_at":"2026-11-03T21:19:12+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"}