{"id":"CVE-2026-113149","kind":"vulnerability","aliases":["CVE-2026-113149"],"related":[],"title":"Chrome: FullScreen memory corruption lets a crafted page run code","description":"Memory corruption in FullScreen in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)","summary":"A memory corruption bug in Chrome's FullScreen handling lets a remote attacker run arbitrary code inside the browser sandbox by serving a crafted HTML page. The attacker gets code execution within the renderer sandbox, not full system access.","severity":"high","cvss":8.8,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"google chrome","fixed":["156.0.8078.47"],"affected":"< 156.0.8078.47","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["browsers","chrome","desktop","package"],"not_affected_if":["already-on-156.0.8078.47-or-later"],"how_to_check":"Open chrome://settings/help or run google-chrome --version and compare against 156.0.8078.47.","fix":"Update Google Chrome to 156.0.8078.47 or later.","status":"open","published_at":"2026-10-20T22:19:07+00:00","first_seen_at":"2026-10-23T21:57:24+00:00","triaged_at":"2026-10-23T22:36:49+00:00","updated_at":"2026-10-23T22:36:49+00:00","category":"package","confidence":0.8,"triage":{"at":"2026-10-23T22:36:49Z","model":"claude-haiku-5-5","output":{"fix":"Update Google Chrome to 156.0.8078.47 or later.\nunknown","reach":"internet","title":"Chrome: FullScreen memory corruption lets a crafted page run code","impact":"medium","summary":"A memory corruption bug in Chrome's FullScreen handling lets a remote attacker run arbitrary code inside the browser sandbox by serving a crafted HTML page. The attacker gets code execution within the renderer sandbox, not full system access.","category":"package","who_cares":["chrome","browsers","desktop"],"confidence":0.8,"needs_auth":"no","worst_case":"Attacker runs code inside the browser sandbox after a victim visits a page","analyst_note":"","how_to_check":"Open chrome://settings/help or run google-chrome --version and compare against 156.0.8078.47.\nunknown","needs_analyst":false,"not_affected_if":["already-on-156.0.8078.47-or-later"],"user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"unknown"},"cost_usd":0.000476,"input_tokens":2942,"output_tokens":364,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-113149':13A,16A '-2026':12A,15A '156.0.8078.47':71C 'access':61B 'allow':72C 'arbitrari':37B,78C 'attack':35B,50B,75C 'browser':19B,41B 'bug':26B 'chrome':1A,18A,20B,28B,68C 'chromium':88C 'code':10A,38B,52B,79C 'corrupt':4A,25B,63C 'craft':7A,46B,85C 'cve':11A,14A 'desktop':21B 'execut':53B,77C 'full':59B 'fullscreen':2A,30B,65C 'get':51B 'googl':67C 'google':17A 'handl':31B 'html':47B,86C 'insid':39B,80C 'let':5A,32B 'medium':91C 'memori':3A,24B,62C 'packag':22B 'page':8A,48B,87C 'prior':69C 'remot':34B,74C 'render':56B 'run':9A,36B 'sandbox':42B,57B,82C 'secur':89C 'serv':44B 'sever':90C 'system':60B 'via':83C 'within':54B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:19:07+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cvss_by":"134c704f-9b21-4f2e-91b3-4a467353bcc0","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-113149","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113149","severity":null,"published_at":"2026-10-20T22:19:07+00:00","modified_at":"2026-10-22T15:32:19+00:00","first_seen_at":"2026-10-23T21:57:24+00:00","fetched_at":"2026-10-23T22:28:59+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"}