{"id":"CVE-2026-86923","kind":"vulnerability","aliases":["CVE-2026-86923"],"related":[],"title":"Apple macOS: privacy control flaw lets an app read sensitive user data","description":"An information disclosure issue was addressed with improved privacy controls. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. An app may be able to access sensitive user data.","summary":"An information disclosure flaw in macOS lets an app access sensitive user data it should not reach. Apple fixed it with improved privacy controls in macOS Golden Gate 27, Sequoia 15.8.2 and Tahoe 26.7.2.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["apple","endpoints","infrastructure","macos"],"not_affected_if":["already-patched"],"how_to_check":"- Run `sw_vers -productVersion` on each Mac and compare against the fixed builds: `27` (Golden Gate), `15.8.2` (Sequoia), `26.7.2` (Tahoe)\n- unknown for any other check, the sources do not say","fix":"- Update macOS to `27`, `15.8.2` or `26.7.2` depending on the installed release, via System Settings > General > Software Update","status":"open","published_at":"2026-10-26T21:20:29+00:00","first_seen_at":"2026-10-26T21:55:22+00:00","triaged_at":"2026-10-26T21:56:57+00:00","updated_at":"2026-10-26T21:56:57+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-10-26T21:56:57Z","model":"claude-haiku-5-5","output":{"fix":"- Update macOS to `27`, `15.8.2` or `26.7.2` depending on the installed release, via System Settings > General > Software Update","reach":"local","title":"Apple macOS: privacy control flaw lets an app read sensitive user data","impact":"medium","summary":"An information disclosure flaw in macOS lets an app access sensitive user data it should not reach. Apple fixed it with improved privacy controls in macOS Golden Gate 27, Sequoia 15.8.2 and Tahoe 26.7.2.","category":"infrastructure","nicknames":[],"who_cares":["macos","apple","endpoints"],"confidence":0.5,"needs_auth":"unknown","worst_case":"A malicious app reads sensitive user data it should not access.","analyst_note":"Check Apple's security notes for CVE-2026-86923 to learn which app or data path is involved and whether user interaction is required.","how_to_check":"- Run `sw_vers -productVersion` on each Mac and compare against the fixed builds: `27` (Golden Gate), `15.8.2` (Sequoia), `26.7.2` (Tahoe)\n- unknown for any other check, the sources do not say","needs_analyst":true,"not_affected_if":["already-patched"],"who_is_affected":"Mac users and fleets on macOS releases older than the fixed builds. The sources do not say which apps or data paths are needed to trigger it, so the exact exposure is unknown. Machines already on the fixed versions are not affected.","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000605,"input_tokens":3277,"output_tokens":555,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2026':14A,17A '-86923':15A,18A '15.8.2':53B,78C '26.7.2':56B,81C '27':51B,75C 'abl':86C 'access':32B,88C 'address':62C 'app':8A,31B,83C 'appl':1A,19B,40B 'control':4A,46B,66C 'cve':13A,16A 'data':12A,35B,91C 'disclosur':25B,59C 'endpoint':20B 'fix':41B,70C 'flaw':5A,26B 'gate':50B,74C 'golden':49B,73C 'improv':44B,64C 'inform':24B,58C 'infrastructur':21B 'issu':60C,68C 'let':6A,29B 'maco':2A,22B,28B,48B,72C,76C,79C 'may':84C 'privaci':3A,45B,65C 'reach':39B 'read':9A 'sensit':10A,33B,89C 'sequoia':52B,77C 'taho':55B,80C 'user':11A,34B,90C","nicknames":[],"mitigations":[],"who_affected":"Mac users and fleets on macOS releases older than the fixed builds. The sources do not say which apps or data paths are needed to trigger it, so the exact exposure is unknown. Machines already on the fixed versions are not affected.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-26T21:20:29+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-86923","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86923","severity":null,"published_at":"2026-10-26T21:20:29+00:00","modified_at":"2026-10-26T21:20:29+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"}