{"id":"CVE-2026-112548","kind":"vulnerability","aliases":["CVE-2026-112548"],"related":[],"title":"macOS: use-after-free lets a local app gain root privileges","description":"A use after free issue was addressed with improved memory management. 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 use-after-free memory bug in macOS lets an app escalate to root privileges. Apple says it is fixed by improved memory management 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":["developer-laptops","infrastructure","macbook","macos"],"not_affected_if":["fully-patched-macos"],"how_to_check":"- Run `sw_vers -productVersion` and compare against 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\n- unknown","status":"open","published_at":"2026-10-26T21:17:47+00:00","first_seen_at":"2026-10-26T21:20:27+00:00","triaged_at":"2026-10-26T21:28:01+00:00","updated_at":"2026-10-26T21:28:01+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-10-26T21:28:01Z","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\n- unknown","reach":"local","title":"macOS: use-after-free lets a local app gain root privileges","impact":"high","summary":"A use-after-free memory bug in macOS lets an app escalate to root privileges. Apple says it is fixed by improved memory management in macOS Golden Gate 27.2, Sequoia 15.8.2 and Tahoe 26.7.2.","category":"infrastructure","nicknames":[],"who_cares":["macos","macbook","developer-laptops"],"confidence":0.5,"needs_auth":"yes","worst_case":"A local app gains root privileges on the Mac","analyst_note":"Check the Apple security notes and NVD entry CVE-2026-112548 for the affected build ranges and whether exploitation is known.","how_to_check":"- Run `sw_vers -productVersion` and compare against the fixed versions: `27.2`, `15.8.2`, `26.7.2`\n- unknown","needs_analyst":true,"not_affected_if":["fully-patched-macos"],"who_is_affected":"Any Mac running an unpatched macOS release that predates the fixed versions can be affected, since the flaw sits in the operating system itself. The sources do not say which earlier builds are vulnerable or whether any special configuration is needed, so treat all unpatched Macs as in scope. Teams that only run managed, fully patched Macs with current releases can skip the emergency response.","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000614,"input_tokens":3270,"output_tokens":573,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-112548':15A,18A '-2026':14A,17A '15.8.2':56B,82C '26.7.2':59B,85C '27.2':54B,79C 'abl':90C 'address':66C 'app':9A,36B,87C 'appl':41B 'bug':31B 'cve':13A,16A 'develop':20B 'developer-laptop':19B 'escal':37B 'fix':45B,74C 'free':5A,29B,63C 'gain':10A,92C 'gate':53B,78C 'golden':52B,77C 'improv':47B,68C 'infrastructur':22B 'issu':64C,72C 'laptop':21B 'let':6A,34B 'local':8A 'macbook':23B 'maco':1A,24B,33B,51B,76C,80C,83C 'manag':49B,70C 'may':88C 'memori':30B,48B,69C 'privileg':12A,40B,94C 'root':11A,39B,93C 'say':42B 'sequoia':55B,81C 'taho':58B,84C 'use':3A,27B,61C 'use-after-fre':2A,26B","nicknames":[],"mitigations":[],"who_affected":"Any Mac running an unpatched macOS release that predates the fixed versions can be affected, since the flaw sits in the operating system itself. The sources do not say which earlier builds are vulnerable or whether any special configuration is needed, so treat all unpatched Macs as in scope. Teams that only run managed, fully patched Macs with current releases can skip the emergency response.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-26T21:17:47+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-112548","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112548","severity":null,"published_at":"2026-10-26T21:17:47+00:00","modified_at":"2026-10-26T21:17:47+00:00","first_seen_at":"2026-10-26T21:20:27+00:00","fetched_at":"2026-10-26T21:20:27+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"}