{"id":"CVE-2026-86931","kind":"vulnerability","aliases":["CVE-2026-86931"],"related":[],"title":"Apple macOS: memory management flaw lets an app read sensitive user data","description":"A privacy issue was addressed with improved memory management. 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":"Apple fixed a privacy issue in macOS memory management that lets a local app access sensitive user data. The sources do not give a CVSS score or describe the exact trigger.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["apple","endpoints","infrastructure","macos"],"not_affected_if":["patched-macos"],"how_to_check":"- Run `sw_vers -productVersion` and compare against the fixed builds listed in the advisory.\n- unknown","fix":"- Update macOS Sequoia to `15.8.2` or later.\n- Update macOS Tahoe to `26.7.2` or later.\n- Update to macOS Golden Gate `27` or later.","status":"open","published_at":"2026-10-26T21:20:30+00:00","first_seen_at":"2026-10-26T21:55:22+00:00","triaged_at":"2026-10-26T21:56:56+00:00","updated_at":"2026-10-26T21:56:56+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-10-26T21:56:56Z","model":"claude-haiku-5-5","output":{"fix":"- Update macOS Sequoia to `15.8.2` or later.\n- Update macOS Tahoe to `26.7.2` or later.\n- Update to macOS Golden Gate `27` or later.","reach":"local","title":"Apple macOS: memory management flaw lets an app read sensitive user data","impact":"medium","summary":"Apple fixed a privacy issue in macOS memory management that lets a local app access sensitive user data. The sources do not give a CVSS score or describe the exact trigger.","category":"infrastructure","nicknames":[],"who_cares":["macos","apple","endpoints"],"confidence":0.5,"needs_auth":"unknown","worst_case":"A local app reads sensitive user data it should not reach.","analyst_note":"Check Apple's security notes for CVE-2026-86931 for the CVSS score, affected components and any required permissions.","how_to_check":"- Run `sw_vers -productVersion` and compare against the fixed builds listed in the advisory.\n- unknown","needs_analyst":true,"not_affected_if":["patched-macos"],"who_is_affected":"Affected systems are Apple Macs running macOS Golden Gate before 27, Sequoia before 15.8.2, or Tahoe before 26.7.2, per the description. Any Mac user running an unpatched release is in scope. The sources do not say which app conditions or permissions are needed to reach the data.","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000588,"input_tokens":3269,"output_tokens":522,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2026':14A,17A '-86931':15A,18A '15.8.2':74C '26.7.2':77C '27':71C 'abl':82C 'access':37B,84C 'address':58C 'app':8A,36B,79C 'appl':1A,19B,23B 'cve':13A,16A 'cvss':47B 'data':12A,40B,87C 'describ':50B 'endpoint':20B 'exact':52B 'fix':24B,66C 'flaw':5A 'gate':70C 'give':45B 'golden':69C 'improv':60C 'infrastructur':21B 'issu':27B,56C,64C 'let':6A,33B 'local':35B 'maco':2A,22B,29B,68C,72C,75C 'manag':4A,31B,62C 'may':80C 'memori':3A,30B,61C 'privaci':26B,55C 'read':9A 'score':48B 'sensit':10A,38B,85C 'sequoia':73C 'sourc':42B 'taho':76C 'trigger':53B 'user':11A,39B,86C","nicknames":[],"mitigations":[],"who_affected":"Affected systems are Apple Macs running macOS Golden Gate before 27, Sequoia before 15.8.2, or Tahoe before 26.7.2, per the description. Any Mac user running an unpatched release is in scope. The sources do not say which app conditions or permissions are needed to reach the data.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-26T21:20:30+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-86931","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86931","severity":null,"published_at":"2026-10-26T21:20:30+00:00","modified_at":"2026-10-26T21:20:30+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"}