{"id":"CVE-2026-86984","kind":"vulnerability","aliases":["CVE-2026-86984"],"related":[],"title":"macOS: file access flaw lets an app read user contact information","description":"A file access issue existed with certain home folder files. This was addressed with improved access restrictions. This issue is fixed in macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. An app may be able to access information about a user's contacts.","summary":"A file access restriction problem in certain home folder files let an app read information about the user's contacts. Apple fixed it with improved access restrictions in macOS Golden Gate 27.2, Sequoia 15.8.2 and Tahoe 26.7.2.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["endpoints","fleet-admins","infrastructure","macos"],"not_affected_if":["patched-macos"],"how_to_check":"- Run `sw_vers -productVersion` on each Mac and compare against the fixed versions.\n- unknown","fix":"- Update macOS to `27.2` (Golden Gate), `15.8.2` (Sequoia) or `26.7.2` (Tahoe) or later.","status":"open","published_at":"2026-10-26T21:20:36+00:00","first_seen_at":"2026-10-26T21:55:22+00:00","triaged_at":"2026-10-26T21:56:33+00:00","updated_at":"2026-10-26T21:56:33+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-10-26T21:56:33Z","model":"claude-haiku-5-5","output":{"fix":"- Update macOS to `27.2` (Golden Gate), `15.8.2` (Sequoia) or `26.7.2` (Tahoe) or later.","reach":"unknown","title":"macOS: file access flaw lets an app read user contact information","impact":"low","summary":"A file access restriction problem in certain home folder files let an app read information about the user's contacts. Apple fixed it with improved access restrictions in macOS Golden Gate 27.2, Sequoia 15.8.2 and Tahoe 26.7.2.","category":"infrastructure","nicknames":[],"who_cares":["macos","endpoints","fleet-admins"],"confidence":0.5,"needs_auth":"unknown","worst_case":"A malicious app reads contact information from the user's Mac","analyst_note":"Check Apple's security notes for CVE-2026-86984 to confirm the affected version ranges and whether a user action or installed app is required.","how_to_check":"- Run `sw_vers -productVersion` on each Mac and compare against the fixed versions.\n- unknown","needs_analyst":true,"not_affected_if":["patched-macos"],"who_is_affected":"Any Mac running macOS Golden Gate before 27.2, Sequoia before 15.8.2, or Tahoe before 26.7.2. The sources do not say what extra conditions must hold for an app to exploit it, so the exposure window is the full unpatched fleet. Managed fleets with automatic updates may already be covered.","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000601,"input_tokens":3283,"output_tokens":546,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2026':13A,16A '-86984':14A,17A '15.8.2':57B,89C '26.7.2':60B,92C '27.2':55B,86C 'abl':97C 'access':3A,26B,49B,63C,76C,99C 'address':73C 'admin':21B 'app':7A,36B,94C 'appl':44B 'certain':30B,67C 'contact':10A,43B,105C 'cve':12A,15A 'endpoint':18B 'exist':65C 'file':2A,25B,33B,62C,70C 'fix':45B,81C 'flaw':4A 'fleet':20B 'fleet-admin':19B 'folder':32B,69C 'gate':54B,85C 'golden':53B,84C 'home':31B,68C 'improv':48B,75C 'inform':11A,38B,100C 'infrastructur':22B 'issu':64C,79C 'let':5A,34B 'maco':1A,23B,52B,83C,87C,90C 'may':95C 'problem':28B 'read':8A,37B 'restrict':27B,50B,77C 'sequoia':56B,88C 'taho':59B,91C 'user':9A,41B,103C","nicknames":[],"mitigations":[],"who_affected":"Any Mac running macOS Golden Gate before 27.2, Sequoia before 15.8.2, or Tahoe before 26.7.2. The sources do not say what extra conditions must hold for an app to exploit it, so the exposure window is the full unpatched fleet. Managed fleets with automatic updates may already be covered.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-26T21:20:36+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-86984","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86984","severity":null,"published_at":"2026-10-26T21:20:36+00:00","modified_at":"2026-10-26T21:20:36+00:00","first_seen_at":"2026-10-26T21:55:22+00:00","fetched_at":"2026-10-26T21:55:22+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"}