{"id":"CVE-2026-121075","kind":"vulnerability","aliases":["CVE-2026-121075"],"related":[],"title":"Google Chrome: DevTools flaw lets a crafted web page bypass access restrictions","description":"Missing authorization in DevTools in Google Chrome prior to 157.0.8103.38 allowed a remote attacker leveraging social engineering to bypass system access restrictions via a crafted HTML page. (Chromium security severity: Medium)","summary":"Chrome's DevTools component is missing an authorization check, so a remote attacker who tricks a user into opening a crafted HTML page can bypass system access restrictions. The source describes Chromium's severity as Medium.","severity":"medium","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["browser","chrome","linux","macos","other","windows"],"not_affected_if":["chrome-updated"],"how_to_check":"- Check the installed Chrome version in Chrome's About page or with `google-chrome --version`\n- Compare it with the fixed version `157.0.8103.38`","fix":"- Google Chrome: move to `157.0.8103.38` or later","status":"open","published_at":"2026-11-03T21:17:12+00:00","first_seen_at":"2026-11-03T21:19:11+00:00","triaged_at":"2026-11-03T21:26:53+00:00","updated_at":"2026-11-03T21:26:53+00:00","category":"other","confidence":0.7,"triage":{"at":"2026-11-03T21:26:53Z","model":"claude-haiku-5-5","output":{"fix":"- Google Chrome: move to `157.0.8103.38` or later","reach":"internet","title":"Google Chrome: DevTools flaw lets a crafted web page bypass access restrictions","impact":"medium","summary":"Chrome's DevTools component is missing an authorization check, so a remote attacker who tricks a user into opening a crafted HTML page can bypass system access restrictions. The source describes Chromium's severity as Medium.","audience":"everyone","category":"other","nicknames":[],"who_cares":["chrome","browser","windows","macos","linux"],"confidence":0.7,"fix_status":"available","needs_auth":"no","worst_case":"Attacker bypasses system access restrictions after the user opens a crafted page","analyst_note":"","how_to_check":"- Check the installed Chrome version in Chrome's About page or with `google-chrome --version`\n- Compare it with the fixed version `157.0.8103.38`","plain_action":"Update Google Chrome to version 157.0.8103.38 or later through Chrome's update menu.","needs_analyst":false,"not_affected_if":["chrome-updated"],"who_is_affected":"Anyone running Google Chrome before 157.0.8103.38 is potentially exposed when they open a crafted HTML page. Managed fleets should confirm the Chrome version across endpoints. Users who never open untrusted pages face lower risk.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"medium"},"cost_usd":0.000668,"input_tokens":4106,"output_tokens":514,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-121075':15A,18A '-2026':14A,17A '157.0.8103.38':70C 'access':11A,51B,81C 'allow':71C 'attack':37B,74C 'author':32B,62C 'browser':19B 'bypass':10A,49B,79C 'check':33B 'chrome':2A,20B,25B,67C 'chromium':56B,88C 'compon':28B 'craft':7A,45B,85C 'cve':13A,16A 'describ':55B 'devtool':3A,27B,64C 'engin':77C 'flaw':4A 'googl':1A,66C 'html':46B,86C 'let':5A 'leverag':75C 'linux':21B 'maco':22B 'medium':60B,91C 'miss':30B,61C 'open':43B 'page':9A,47B,87C 'prior':68C 'remot':36B,73C 'restrict':12A,52B,82C 'secur':89C 'sever':58B,90C 'social':76C 'sourc':54B 'system':50B,80C 'trick':39B 'user':41B 'via':83C 'web':8A 'window':24B","nicknames":[],"mitigations":[],"who_affected":"Anyone running Google Chrome before 157.0.8103.38 is potentially exposed when they open a crafted HTML page. Managed fleets should confirm the Chrome version across endpoints. Users who never open untrusted pages face lower risk.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"everyone","plain_action":"Update Google Chrome to version 157.0.8103.38 or later through Chrome's update menu.","pkeys":[],"ptokens":[],"labels":["browser","chrome","linux","macos","medium","other","windows"],"campaign_type":null,"first_public_at":"2026-11-03T21:17:12+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-121075","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121075","severity":null,"published_at":"2026-11-03T21:17:12+00:00","modified_at":"2026-11-03T21:17:12+00:00","first_seen_at":"2026-11-03T21:19:11+00:00","fetched_at":"2026-11-03T21:19:11+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"}