{"id":"CVE-2026-113333","kind":"vulnerability","aliases":["CVE-2026-113333"],"related":[],"title":"Google Chrome: memory corruption in Extensions lets crafted pages read sandbox memory","description":"Memory corruption in Extensions in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to potentially read memory inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)","summary":"Google Chrome versions before 156.0.8078.47 have a memory corruption bug in the Extensions component. A remote attacker who lures a user to a crafted HTML page can potentially read memory inside the browser sandbox.","severity":"medium","cvss":6.5,"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":["browser","chrome","desktop","endpoints","package"],"not_affected_if":["chrome-156.0.8078.47-or-later"],"how_to_check":"- Open chrome://settings/help in each managed browser and read the version number\n- Check the installed version with `google-chrome --version` on Linux machines\n- Fleet tools: query the Chrome version reported by your MDM or endpoint management system","fix":"- Update Google Chrome to `156.0.8078.47` or later\n- Relaunch the browser after the update so the new build takes effect","status":"open","published_at":"2026-10-20T22:19:27+00:00","first_seen_at":"2026-10-23T21:57:24+00:00","triaged_at":"2026-10-25T03:51:44+00:00","updated_at":"2026-10-25T03:51:44+00:00","category":"package","confidence":0.7,"triage":{"at":"2026-10-25T03:51:44Z","model":"claude-haiku-5-5","output":{"fix":"- Update Google Chrome to `156.0.8078.47` or later\n- Relaunch the browser after the update so the new build takes effect","reach":"internet","title":"Google Chrome: memory corruption in Extensions lets crafted pages read sandbox memory","impact":"low","summary":"Google Chrome versions before 156.0.8078.47 have a memory corruption bug in the Extensions component. A remote attacker who lures a user to a crafted HTML page can potentially read memory inside the browser sandbox.","category":"package","nicknames":[],"who_cares":["chrome","desktop","browser","endpoints"],"confidence":0.7,"needs_auth":"no","worst_case":"attacker reads memory inside the browser sandbox via crafted page","analyst_note":"","how_to_check":"- Open chrome://settings/help in each managed browser and read the version number\n- Check the installed version with `google-chrome --version` on Linux machines\n- Fleet tools: query the Chrome version reported by your MDM or endpoint management system","needs_analyst":false,"not_affected_if":["chrome-156.0.8078.47-or-later"],"who_is_affected":"Any machine running Google Chrome older than 156.0.8078.47 is exposed, and exploitation requires only that a user visit an attacker-controlled page. Managed fleets with auto-update disabled or delayed are the most likely to still run an affected build. Users on the latest stable channel are not affected.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"medium"},"cost_usd":0.0006,"input_tokens":3334,"output_tokens":533,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-113333':15A,18A '-2026':14A,17A '156.0.8078.47':30B,69C 'allow':70C 'attack':42B,73C 'browser':21B,58B 'bug':35B 'chrome':2A,20A,22B,27B,66C 'chromium':86C 'compon':39B 'corrupt':4A,34B,61C 'craft':8A,49B,83C 'cve':13A,16A 'desktop':23B 'endpoint':24B 'extens':6A,38B,63C 'googl':1A,26B,65C 'google':19A 'html':50B,84C 'insid':56B,78C 'let':7A 'lure':44B 'medium':89C 'memori':3A,12A,33B,55B,60C,77C 'packag':25B 'page':9A,51B,85C 'potenti':53B,75C 'prior':67C 'read':10A,54B,76C 'remot':41B,72C 'sandbox':11A,59B,80C 'secur':87C 'sever':88C 'user':46B 'version':28B 'via':81C","nicknames":[],"mitigations":[],"who_affected":"Any machine running Google Chrome older than 156.0.8078.47 is exposed, and exploitation requires only that a user visit an attacker-controlled page. Managed fleets with auto-update disabled or delayed are the most likely to still run an affected build. Users on the latest stable channel are not affected.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:19:27+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","cvss_by":"134c704f-9b21-4f2e-91b3-4a467353bcc0","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-113333","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113333","severity":null,"published_at":"2026-10-20T22:19:27+00:00","modified_at":"2026-10-21T17:03:33+00:00","first_seen_at":"2026-10-23T21:57:24+00:00","fetched_at":"2026-10-23T22:29:00+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"}