{"id":"CVE-2026-112494","kind":"vulnerability","aliases":["CVE-2026-112494"],"related":[],"title":"macOS: file quarantine bypass lets an app skip Gatekeeper checks","description":"A file quarantine bypass was addressed with additional checks. This issue is fixed in macOS Golden Gate 27.2, macOS Tahoe 26.7.2. An app may bypass Gatekeeper checks.","summary":"A flaw in macOS file quarantine handling lets an app bypass Gatekeeper checks on downloaded files. The fix adds additional checks in macOS Golden Gate 27.2 and macOS Tahoe 26.7.2.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["endpoints","fleet-management","infrastructure","macos"],"not_affected_if":["already-updated"],"how_to_check":"- Run `sw_vers -productVersion` on each Mac and compare against the fixed builds, `27.2` (Golden Gate) and `26.7.2` (Tahoe).\n- Check Software Update in System Settings for pending macOS updates.","fix":"- Update macOS to `27.2` (Golden Gate) or `26.7.2` (Tahoe) or later.","status":"open","published_at":"2026-10-26T21:17:40+00:00","first_seen_at":"2026-10-26T21:20:26+00:00","triaged_at":"2026-10-26T21:29:51+00:00","updated_at":"2026-10-26T21:29:51+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-10-26T21:29:51Z","model":"claude-haiku-5-5","output":{"fix":"- Update macOS to `27.2` (Golden Gate) or `26.7.2` (Tahoe) or later.","reach":"local","title":"macOS: file quarantine bypass lets an app skip Gatekeeper checks","impact":"medium","summary":"A flaw in macOS file quarantine handling lets an app bypass Gatekeeper checks on downloaded files. The fix adds additional checks in macOS Golden Gate 27.2 and macOS Tahoe 26.7.2.","category":"infrastructure","nicknames":[],"who_cares":["macos","endpoints","fleet-management"],"confidence":0.5,"needs_auth":"unknown","worst_case":"Malicious app runs without Gatekeeper blocking it on the Mac.","analyst_note":"Sources do not say which macOS versions before 26.7.2 and 27.2 are affected, or whether user interaction is needed; check Apple's security notes for this CVE.","how_to_check":"- Run `sw_vers -productVersion` on each Mac and compare against the fixed builds, `27.2` (Golden Gate) and `26.7.2` (Tahoe).\n- Check Software Update in System Settings for pending macOS updates.","needs_analyst":true,"not_affected_if":["already-updated"],"who_is_affected":"Any Mac running an unpatched macOS release on the affected lines is exposed, since the flaw sits in the operating system's quarantine and Gatekeeper logic rather than in a third-party app. Managed fleets should prioritise machines that open downloaded files. The sources do not say which earlier releases are affected.","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000621,"input_tokens":3262,"output_tokens":590,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-112494':13A,16A '-2026':12A,15A '26.7.2':52B,73C '27.2':48B,70C 'add':41B 'addit':42B,60C 'address':58C 'app':7A,32B,75C 'bypass':4A,33B,56C,77C 'check':10A,35B,43B,61C,79C 'cve':11A,14A 'download':37B 'endpoint':17B 'file':2A,27B,38B,54C 'fix':40B,65C 'flaw':24B 'fleet':19B 'fleet-manag':18B 'gate':47B,69C 'gatekeep':9A,34B,78C 'golden':46B,68C 'handl':29B 'infrastructur':21B 'issu':63C 'let':5A,30B 'maco':1A,22B,26B,45B,50B,67C,71C 'manag':20B 'may':76C 'quarantin':3A,28B,55C 'skip':8A 'taho':51B,72C","nicknames":[],"mitigations":[],"who_affected":"Any Mac running an unpatched macOS release on the affected lines is exposed, since the flaw sits in the operating system's quarantine and Gatekeeper logic rather than in a third-party app. Managed fleets should prioritise machines that open downloaded files. The sources do not say which earlier releases are affected.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-26T21:17:40+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-112494","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112494","severity":null,"published_at":"2026-10-26T21:17:40+00:00","modified_at":"2026-10-26T21:17:40+00:00","first_seen_at":"2026-10-26T21:20:26+00:00","fetched_at":"2026-10-26T21:20:26+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"}