{"id":"CVE-2026-112504","kind":"vulnerability","aliases":["CVE-2026-112504"],"related":[],"title":"macOS: directory path parsing flaw lets an app modify protected files","description":"A parsing issue in the handling of directory paths was addressed with improved path validation. 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 modify protected parts of the file system.","summary":"A parsing issue in how macOS handles directory paths let an app write to protected parts of the file system. Apple fixed it with stricter path validation 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":["apple-devices","endpoints","infrastructure","macos"],"not_affected_if":["fixed-build"],"how_to_check":"- Run `sw_vers -productVersion` on each Mac and compare against the fixed versions.\n- unknown","fix":"- Update macOS to `27.2` (Golden Gate), `15.8.2` (Sequoia) or `26.7.2` (Tahoe) or later, via Software Update.","status":"open","published_at":"2026-10-26T21:17:41+00:00","first_seen_at":"2026-10-26T21:20:26+00:00","triaged_at":"2026-10-26T21:29:43+00:00","updated_at":"2026-10-26T21:29:43+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-10-26T21:29:43Z","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, via Software Update.","reach":"local","title":"macOS: directory path parsing flaw lets an app modify protected files","impact":"medium","summary":"A parsing issue in how macOS handles directory paths let an app write to protected parts of the file system. Apple fixed it with stricter path validation in macOS Golden Gate 27.2, Sequoia 15.8.2 and Tahoe 26.7.2.","category":"infrastructure","nicknames":[],"who_cares":["macos","endpoints","apple-devices"],"confidence":0.5,"needs_auth":"no","worst_case":"A local app writes to protected system files on the Mac.","analyst_note":"Check Apple's security release notes for CVE-2026-112504 to confirm the affected builds and whether user interaction is needed.","how_to_check":"- Run `sw_vers -productVersion` on each Mac and compare against the fixed versions.\n- unknown","needs_analyst":true,"not_affected_if":["fixed-build"],"who_is_affected":"Any Mac running a macOS release older than the fixed versions for its branch. The description says an app must be able to run on the machine, so the risk is local, from software a user has installed or run. Managed fleets that already pin to the fixed builds can skip it.","user_interaction":"unknown","needs_special_setup":"no","severity_if_unknown":"unknown"},"cost_usd":0.000589,"input_tokens":3292,"output_tokens":519,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-112504':14A,17A '-2026':13A,16A '15.8.2':57B,87C '26.7.2':60B,90C '27.2':55B,84C 'abl':95C 'address':71C 'app':8A,35B,92C 'appl':19B,44B 'apple-devic':18B 'cve':12A,15A 'devic':20B 'directori':2A,31B,68C 'endpoint':21B 'file':11A,42B,102C 'fix':45B,79C 'flaw':5A 'gate':54B,83C 'golden':53B,82C 'handl':30B,66C 'improv':73C 'infrastructur':22B 'issu':26B,63C,77C 'let':6A,33B 'maco':1A,23B,29B,52B,81C,85C,88C 'may':93C 'modifi':9A,97C 'pars':4A,25B,62C 'part':39B,99C 'path':3A,32B,49B,69C,74C 'protect':10A,38B,98C 'sequoia':56B,86C 'stricter':48B 'system':43B,103C 'taho':59B,89C 'valid':50B,75C 'write':36B","nicknames":[],"mitigations":[],"who_affected":"Any Mac running a macOS release older than the fixed versions for its branch. The description says an app must be able to run on the machine, so the risk is local, from software a user has installed or run. Managed fleets that already pin to the fixed builds can skip it.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-26T21:17:41+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-112504","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112504","severity":null,"published_at":"2026-10-26T21:17:41+00:00","modified_at":"2026-10-26T21:17:41+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"}