{"id":"CVE-2026-113079","kind":"vulnerability","aliases":["CVE-2026-113079"],"related":[],"title":"Chrome: SiteIsolation use-after-free lets a crafted web page run code","description":"Use after free in SiteIsolation 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: Medium)","summary":"A use-after-free bug in Chrome's SiteIsolation component lets a remote attacker run code inside the browser sandbox by serving a crafted HTML page. The attacker needs the victim to open that page, and the sandbox limits what they get beyond that.","severity":"high","cvss":8.8,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browsers","chrome","desktop-users","other"],"not_affected_if":["already-on-156.0.8078.47-or-later"],"how_to_check":"Run chrome://version in the browser and compare the version with 156.0.8078.47.","fix":"Update Google Chrome to 156.0.8078.47 or later.","status":"open","published_at":"2026-10-20T22:18:59+00:00","first_seen_at":"2026-10-23T21:57:23+00:00","triaged_at":"2026-10-23T22:37:36+00:00","updated_at":"2026-10-23T22:37:36+00:00","category":"other","confidence":0.8,"triage":{"at":"2026-10-23T22:37:36Z","model":"claude-haiku-5-5","output":{"fix":"Update Google Chrome to 156.0.8078.47 or later.","reach":"internet","title":"Chrome: SiteIsolation use-after-free lets a crafted web page run code","impact":"medium","summary":"A use-after-free bug in Chrome's SiteIsolation component lets a remote attacker run code inside the browser sandbox by serving a crafted HTML page. The attacker needs the victim to open that page, and the sandbox limits what they get beyond that.","category":"other","who_cares":["chrome","desktop-users","browsers"],"confidence":0.8,"needs_auth":"no","worst_case":"Attacker runs code inside the Chrome sandbox after the victim visits a page","analyst_note":"","how_to_check":"Run chrome://version in the browser and compare the version with 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":0.000473,"input_tokens":2916,"output_tokens":362,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-113079':16A,19A '-2026':15A,18A '156.0.8078.47':79C 'allow':80C 'arbitrari':87C 'attack':39B,53B,83C 'beyond':68B 'browser':20B,44B 'bug':30B 'chrome':1A,21B,32B,76C 'chromium':97C 'code':13A,41B,88C 'compon':35B 'craft':9A,49B,94C 'cve':14A,17A 'desktop':23B 'desktop-us':22B 'execut':86C 'free':6A,29B,71C 'get':67B 'googl':75C 'html':50B,95C 'insid':42B,89C 'let':7A,36B 'limit':64B 'medium':100C 'need':54B 'open':58B 'page':11A,51B,60B,96C 'potenti':85C 'prior':77C 'remot':38B,82C 'run':12A,40B 'sandbox':45B,63B,91C 'secur':98C 'serv':47B 'sever':99C 'siteisol':2A,34B,73C 'use':4A,27B,69C 'use-after-fre':3A,26B 'user':24B 'via':92C 'victim':56B 'web':10A","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:18:59+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-2026-113079","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113079","severity":null,"published_at":"2026-10-20T22:18:59+00:00","modified_at":"2026-10-21T14:25:17+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"}