{"id":"CVE-2026-113159","kind":"vulnerability","aliases":["CVE-2026-113159"],"related":[],"title":"Google Chrome: DevTools access flaw can leak data from a crafted page","description":"Improper access control in DevTools in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to potentially leak sensitive information via a crafted HTML page. (Chromium security severity: Medium)","summary":"Improper access control in DevTools in Google Chrome before 156.0.8078.47 lets a remote attacker leak sensitive information through a crafted HTML page. An attacker gets read access to data the browser should have kept from the page.","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","managed-devices","vendor"],"not_affected_if":["chrome-156.0.8078.47-or-later","no-chrome-installed"],"how_to_check":"- Check the installed Chrome version in chrome://settings/help or with the Chrome binary's version flag; it must be at or above `156.0.8078.47` to be fixed.\n- On managed fleets, query the Chrome version reported by the device management console and list hosts below `156.0.8078.47`.","fix":"- Update Google Chrome to `156.0.8078.47` or later, then relaunch the browser.\n- Confirm auto-update is enabled on managed devices so the fix reaches all machines.","status":"open","published_at":"2026-10-20T22:19:08+00:00","first_seen_at":"2026-10-23T21:57:24+00:00","triaged_at":"2026-10-25T03:53:09+00:00","updated_at":"2026-10-25T03:53:09+00:00","category":"vendor","confidence":0.7,"triage":{"at":"2026-10-25T03:53:09Z","model":"claude-haiku-5-5","output":{"fix":"- Update Google Chrome to `156.0.8078.47` or later, then relaunch the browser.\n- Confirm auto-update is enabled on managed devices so the fix reaches all machines.","reach":"internet","title":"Google Chrome: DevTools access flaw can leak data from a crafted page","impact":"medium","summary":"Improper access control in DevTools in Google Chrome before 156.0.8078.47 lets a remote attacker leak sensitive information through a crafted HTML page. An attacker gets read access to data the browser should have kept from the page.","category":"vendor","nicknames":[],"who_cares":["chrome","browser","desktop","managed-devices"],"confidence":0.7,"needs_auth":"no","worst_case":"A crafted page leaks sensitive information from the browser.","analyst_note":"","how_to_check":"- Check the installed Chrome version in chrome://settings/help or with the Chrome binary's version flag; it must be at or above `156.0.8078.47` to be fixed.\n- On managed fleets, query the Chrome version reported by the device management console and list hosts below `156.0.8078.47`.","needs_analyst":false,"not_affected_if":["chrome-156.0.8078.47-or-later","no-chrome-installed"],"who_is_affected":"Any user or organization running Google Chrome before 156.0.8078.47 is exposed when they open a page an attacker controls. The flaw is in the browser itself, so the server-side stack and hosted applications are not the target. Teams that only use Chrome on fully updated devices, or that have no Chrome installs, can skip it.","user_interaction":"yes","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000625,"input_tokens":3329,"output_tokens":585,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-113159':15A,18A '-2026':14A,17A '156.0.8078.47':37B,75C 'access':4A,29B,54B,66C 'allow':76C 'attack':41B,51B,79C 'browser':21B,58B 'chrome':2A,20A,22B,35B,72C 'chromium':90C 'control':30B,67C 'craft':11A,47B,87C 'cve':13A,16A 'data':8A,56B 'desktop':23B 'devic':26B 'devtool':3A,32B,69C 'flaw':5A 'get':52B 'googl':1A,34B,71C 'google':19A 'html':48B,88C 'improp':28B,65C 'inform':44B,84C 'kept':61B 'leak':7A,42B,82C 'let':38B 'manag':25B 'managed-devic':24B 'medium':93C 'page':12A,49B,64B,89C 'potenti':81C 'prior':73C 'read':53B 'remot':40B,78C 'secur':91C 'sensit':43B,83C 'sever':92C 'vendor':27B 'via':85C","nicknames":[],"mitigations":[],"who_affected":"Any user or organization running Google Chrome before 156.0.8078.47 is exposed when they open a page an attacker controls. The flaw is in the browser itself, so the server-side stack and hosted applications are not the target. Teams that only use Chrome on fully updated devices, or that have no Chrome installs, can skip it.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:19:08+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-2026-113159","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113159","severity":null,"published_at":"2026-10-20T22:19:08+00:00","modified_at":"2026-10-22T15:25:06+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"}