{"id":"CVE-2026-112493","kind":"vulnerability","aliases":["CVE-2026-112493"],"related":[],"title":"macOS: version check gap lets an app gain root privileges","description":"A downgrade issue was addressed with additional version 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 downgrade issue in macOS allowed an app to gain root privileges, and Apple fixed it with additional version checks. An attacker who can run a malicious app on the Mac can end up with root control of the system.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["apple-devices","fleet-management","infrastructure","macos"],"not_affected_if":["already-patched"],"how_to_check":"- Run `sw_vers -productVersion` and compare against the fixed versions listed in the fix field\n- Check Software Update in System Settings for pending macOS updates","fix":"- Update macOS to `27.2` (Golden Gate), `15.8.2` (Sequoia), or `26.7.2` (Tahoe)","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), `15.8.2` (Sequoia), or `26.7.2` (Tahoe)","reach":"local","title":"macOS: version check gap lets an app gain root privileges","impact":"high","summary":"A downgrade issue in macOS allowed an app to gain root privileges, and Apple fixed it with additional version checks. An attacker who can run a malicious app on the Mac can end up with root control of the system.","category":"infrastructure","nicknames":[],"who_cares":["macos","apple-devices","fleet-management"],"confidence":0.5,"needs_auth":"unknown","worst_case":"A local app gains root privileges on the Mac.","analyst_note":"Sources give no exploit detail, CVSS, or trigger conditions; check Apple's security notes for the CVE-2026-112493 entry to confirm the attack prerequisites.","how_to_check":"- Run `sw_vers -productVersion` and compare against the fixed versions listed in the fix field\n- Check Software Update in System Settings for pending macOS updates","needs_analyst":true,"not_affected_if":["already-patched"],"who_is_affected":"Any Mac running the unpatched macOS builds is affected, since the flaw is in the operating system and the sources describe a local app gaining root. Managed fleets should prioritise machines that run apps from untrusted sources. Systems already on the fixed builds can skip it.","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000593,"input_tokens":3272,"output_tokens":532,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-112493':13A,16A '-2026':12A,15A '15.8.2':85C '26.7.2':88C '27.2':82C 'abl':93C 'addit':42B,71C 'address':69C 'allow':30B 'app':7A,32B,52B,90C 'appl':18B,38B 'apple-devic':17B 'attack':46B 'check':3A,44B,73C 'control':61B 'cve':11A,14A 'devic':19B 'downgrad':26B,66C 'end':57B 'fix':39B,77C 'fleet':21B 'fleet-manag':20B 'gain':8A,34B,95C 'gap':4A 'gate':81C 'golden':80C 'infrastructur':23B 'issu':27B,67C,75C 'let':5A 'mac':55B 'maco':1A,24B,29B,79C,83C,86C 'malici':51B 'manag':22B 'may':91C 'privileg':10A,36B,97C 'root':9A,35B,60B,96C 'run':49B 'sequoia':84C 'system':64B 'taho':87C 'version':2A,43B,72C","nicknames":[],"mitigations":[],"who_affected":"Any Mac running the unpatched macOS builds is affected, since the flaw is in the operating system and the sources describe a local app gaining root. Managed fleets should prioritise machines that run apps from untrusted sources. Systems already on the fixed builds can skip it.","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-2026-112493","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112493","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"}