{"id":"CVE-2026-86936","kind":"vulnerability","aliases":["CVE-2026-86936"],"related":[],"title":"macOS: logic flaw lets an app gain root privileges","description":"A logic issue was addressed with improved checks. 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 gain root privileges.","summary":"A logic issue in macOS allowed an app to gain root privileges on the Mac. Apple fixed it 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","infrastructure","macos"],"not_affected_if":[],"how_to_check":"- Run `sw_vers -productVersion` and compare with the fixed versions: `27.2`, `15.8.2`, `26.7.2`.\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":"2026-10-26T21:20:31+00:00","first_seen_at":"2026-10-26T21:55:22+00:00","triaged_at":"2026-10-26T21:56:53+00:00","updated_at":"2026-10-26T21:56:53+00:00","category":"infrastructure","confidence":0.4,"triage":{"at":"2026-10-26T21:56:53Z","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":"local","title":"macOS: logic flaw lets an app gain root privileges","impact":"high","summary":"A logic issue in macOS allowed an app to gain root privileges on the Mac. Apple fixed it in macOS Golden Gate 27.2, Sequoia 15.8.2 and Tahoe 26.7.2.","category":"infrastructure","nicknames":[],"who_cares":["macos","endpoints"],"confidence":0.4,"needs_auth":"no","worst_case":"A local app gains root privileges on the Mac.","analyst_note":"Confirm affected version ranges and whether exploitation is known; check Apple security release notes for CVE-2026-86936.","how_to_check":"- Run `sw_vers -productVersion` and compare with the fixed versions: `27.2`, `15.8.2`, `26.7.2`.\n- unknown","needs_analyst":true,"not_affected_if":[],"who_is_affected":"Any Mac running an macOS release older than the fixed versions can be affected, since the sources describe a local flaw that any app could use. Managed fleets should confirm they have the fixed builds. The sources do not say which earlier builds are vulnerable beyond that.","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000579,"input_tokens":3266,"output_tokens":505,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2026':11A,14A '-86936':12A,15A '15.8.2':43B,66C '26.7.2':46B,69C '27.2':41B,63C 'abl':74C 'address':51C 'allow':24B 'app':6A,26B,71C 'appl':34B 'check':54C 'cve':10A,13A 'endpoint':16B 'fix':35B,58C 'flaw':3A 'gain':7A,28B,76C 'gate':40B,62C 'golden':39B,61C 'improv':53C 'infrastructur':17B 'issu':21B,49C,56C 'let':4A 'logic':2A,20B,48C 'mac':33B 'maco':1A,18B,23B,38B,60C,64C,67C 'may':72C 'privileg':9A,30B,78C 'root':8A,29B,77C 'sequoia':42B,65C 'taho':45B,68C","nicknames":[],"mitigations":[],"who_affected":"Any Mac running an macOS release older than the fixed versions can be affected, since the sources describe a local flaw that any app could use. Managed fleets should confirm they have the fixed builds. The sources do not say which earlier builds are vulnerable beyond that.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-26T21:20:31+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-86936","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86936","severity":null,"published_at":"2026-10-26T21:20:31+00:00","modified_at":"2026-10-26T21:20:31+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"}