{"id":"CVE-2026-113063","kind":"vulnerability","aliases":["CVE-2026-113063"],"related":[],"title":"Google Chrome: crafted HTML page can run code inside the sandbox","description":"Improper input validation in Chromoting in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Low)","summary":"Improper input validation in Chrome's Chromoting component lets a remote attacker run arbitrary code inside the browser sandbox when a user opens a crafted HTML page. The sources rate the Chromium security severity as Low while NVD gives CVSS 8.8.","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","other","package"],"not_affected_if":["chrome-already-updated"],"how_to_check":"Run chrome://version in Chrome and compare the version to 156.0.8078.47.\nOn managed fleets, check the installed Chrome version with your MDM or endpoint inventory tool.","fix":"Update Google Chrome to 156.0.8078.47 or later.","status":"open","published_at":"2026-10-20T22:18:57+00:00","first_seen_at":"2026-10-23T21:57:23+00:00","triaged_at":"2026-10-23T22:37:47+00:00","updated_at":"2026-10-23T22:37:47+00:00","category":"other","confidence":0.7,"triage":{"at":"2026-10-23T22:37:47Z","model":"claude-haiku-5-5","output":{"fix":"Update Google Chrome to 156.0.8078.47 or later.","reach":"internet","title":"Google Chrome: crafted HTML page can run code inside the sandbox","impact":"high","summary":"Improper input validation in Chrome's Chromoting component lets a remote attacker run arbitrary code inside the browser sandbox when a user opens a crafted HTML page. The sources rate the Chromium security severity as Low while NVD gives CVSS 8.8.","category":"other","who_cares":["chrome","browsers","desktop"],"confidence":0.7,"needs_auth":"no","worst_case":"Attacker code runs inside the browser sandbox after a user visits a page","analyst_note":"","how_to_check":"Run chrome://version in Chrome and compare the version to 156.0.8078.47.\nOn managed fleets, check the installed Chrome version with your MDM or endpoint inventory tool.","needs_analyst":false,"not_affected_if":["chrome-already-updated"],"user_interaction":"yes","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000485,"input_tokens":2942,"output_tokens":382,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-113063':14A,17A '-2026':13A,16A '156.0.8078.47':76C '8.8':65B 'allow':77C 'arbitrari':38B,84C 'attack':36B,80C 'browser':20B,42B 'chrome':2A,19A,21B,29B,73C 'chromium':56B,94C 'chromot':31B,70C 'code':8A,39B,85C 'compon':32B 'craft':3A,49B,91C 'cve':12A,15A 'cvss':64B 'desktop':22B 'execut':83C 'give':63B 'googl':1A,72C 'google':18A 'html':4A,50B,92C 'improp':25B,66C 'input':26B,67C 'insid':9A,40B,86C 'let':33B 'low':60B,97C 'nvd':62B 'open':47B 'packag':24B 'page':5A,51B,93C 'potenti':82C 'prior':74C 'rate':54B 'remot':35B,79C 'run':7A,37B 'sandbox':11A,43B,88C 'secur':57B,95C 'sever':58B,96C 'sourc':53B 'user':46B 'valid':27B,68C 'via':89C","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:18:57+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-2026-113063","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113063","severity":null,"published_at":"2026-10-20T22:18:57+00:00","modified_at":"2026-10-21T17:10:34+00:00","first_seen_at":"2026-10-23T21:57:23+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"}