{"id":"CVE-2026-113215","kind":"vulnerability","aliases":["CVE-2026-113215"],"related":[],"title":"Chrome: extensions use-after-free lets a web page run code in sandbox","description":"Use after free in Extensions 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: Low)","summary":"A use-after-free bug in Chrome's Extensions component lets a remote attacker run arbitrary code inside the browser sandbox when a victim opens a crafted HTML page. The sources rate it high (CVSS 8.8) but Chromium rates it low, and they do not say whether a sandbox escape is also needed.","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","runtime"],"not_affected_if":["already-updated-chrome"],"how_to_check":"Run chrome://version and compare the version with 156.0.8078.47; a lower version is affected.","fix":"Update Google Chrome to 156.0.8078.47 or later.","status":"open","published_at":"2026-10-20T22:19:14+00:00","first_seen_at":"2026-10-23T21:57:24+00:00","triaged_at":"2026-10-23T22:36:08+00:00","updated_at":"2026-10-23T22:36:08+00:00","category":"other","confidence":0.7,"triage":{"at":"2026-10-23T22:36:08Z","model":"claude-haiku-5-5","output":{"fix":"Update Google Chrome to 156.0.8078.47 or later.","reach":"internet","title":"Chrome: extensions use-after-free lets a web page run code in sandbox","impact":"high","summary":"A use-after-free bug in Chrome's Extensions component lets a remote attacker run arbitrary code inside the browser sandbox when a victim opens a crafted HTML page. The sources rate it high (CVSS 8.8) but Chromium rates it low, and they do not say whether a sandbox escape is also needed.","category":"other","who_cares":["chrome","desktop","browsers"],"confidence":0.7,"needs_auth":"no","worst_case":"Attacker runs code inside the browser sandbox after the victim visits a page","analyst_note":"","how_to_check":"Run chrome://version and compare the version with 156.0.8078.47; a lower version is affected.","needs_analyst":false,"not_affected_if":["already-updated-chrome"],"user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"unknown"},"cost_usd":0.000478,"input_tokens":2942,"output_tokens":367,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-113215':17A,20A '-2026':16A,19A '156.0.8078.47':92C '8.8':64B 'allow':93C 'also':80B 'arbitrari':44B,99C 'attack':42B,96C 'browser':23B,48B 'bug':33B 'chrome':1A,22A,24B,35B,89C 'chromium':66B,109C 'code':12A,45B,100C 'compon':38B 'craft':55B,106C 'cve':15A,18A 'cvss':63B 'desktop':25B 'escap':78B 'execut':98C 'extens':2A,37B,86C 'free':6A,32B,84C 'googl':88C 'google':21A 'high':62B 'html':56B,107C 'insid':46B,101C 'let':7A,39B 'low':69B,112C 'need':81B 'open':53B 'page':10A,57B,108C 'prior':90C 'rate':60B,67B 'remot':41B,95C 'run':11A,43B 'runtim':27B 'sandbox':14A,49B,77B,103C 'say':74B 'secur':110C 'sever':111C 'sourc':59B 'use':4A,30B,82C 'use-after-fre':3A,29B 'via':104C 'victim':52B 'web':9A 'whether':75B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:19:14+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-2026-113215","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113215","severity":null,"published_at":"2026-10-20T22:19:14+00:00","modified_at":"2026-10-22T14:06:27+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"}