{"id":"CVE-2026-112670","kind":"vulnerability","aliases":["CVE-2026-112670"],"related":[],"title":"Apple macOS: crafted file causes heap corruption, out-of-bounds write","description":"An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. Processing a maliciously crafted file may lead to heap corruption.","summary":"An out-of-bounds write in an unspecified macOS component is triggered when the system processes a maliciously crafted file, causing heap memory corruption. The sources do not say what an attacker can achieve beyond memory corruption, so code execution is not confirmed.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["apple-devices","infrastructure","macos"],"not_affected_if":["already-on-fixed-macos"],"how_to_check":"- Run `sw_vers -productVersion` and compare against the fixed versions listed below\n- unknown whether the sources name a specific component or file type","fix":"- Update macOS Golden Gate to `27.2` or later\n- Update macOS Sequoia to `15.8.2` or later\n- Update macOS Tahoe to `26.7.2` or later","status":"open","published_at":"2026-10-26T21:18:00+00:00","first_seen_at":"2026-10-26T21:20:29+00:00","triaged_at":"2026-10-26T21:23:44+00:00","updated_at":"2026-10-26T21:23:44+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-10-26T21:23:44Z","model":"claude-haiku-5-5","output":{"fix":"- Update macOS Golden Gate to `27.2` or later\n- Update macOS Sequoia to `15.8.2` or later\n- Update macOS Tahoe to `26.7.2` or later","reach":"unknown","title":"Apple macOS: crafted file causes heap corruption, out-of-bounds write","impact":"medium","summary":"An out-of-bounds write in an unspecified macOS component is triggered when the system processes a maliciously crafted file, causing heap memory corruption. The sources do not say what an attacker can achieve beyond memory corruption, so code execution is not confirmed.","category":"infrastructure","nicknames":[],"who_cares":["macos","apple-devices"],"confidence":0.5,"needs_auth":"unknown","worst_case":"Heap corruption from a crafted file; code execution not confirmed by sources","analyst_note":"Check the Apple security release notes for the affected component, file types and whether exploitation is known; NVD entry at https://nvd.nist.gov/vuln/detail/CVE-2026-112670 gave no severity.","how_to_check":"- Run `sw_vers -productVersion` and compare against the fixed versions listed below\n- unknown whether the sources name a specific component or file type","needs_analyst":true,"not_affected_if":["already-on-fixed-macos"],"who_is_affected":"Any Mac running a macOS version earlier than the fixed releases named above is in scope, since the sources name no narrower component or configuration. The sources do not say which file types or applications trigger the flaw, so whether a given Mac is reachable remains unknown.","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000621,"input_tokens":3289,"output_tokens":585,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-112670':15A,18A '-2026':14A,17A '15.8.2':92C '26.7.2':95C '27.2':89C 'achiev':58B 'address':76C 'appl':1A,20B 'apple-devic':19B 'attack':56B 'beyond':59B 'bound':11A,28B,72C 'caus':5A,45B 'code':63B 'compon':34B 'confirm':67B 'corrupt':7A,48B,61B,105C 'craft':3A,43B,99C 'cve':13A,16A 'devic':21B 'execut':64B 'file':4A,44B,100C 'fix':84C 'gate':88C 'golden':87C 'heap':6A,46B,104C 'improv':78C 'infrastructur':22B 'input':79C 'issu':74C,82C 'lead':102C 'maco':2A,23B,33B,86C,90C,93C 'malici':42B,98C 'may':101C 'memori':47B,60B 'out-of-bound':8A,25B,69C 'process':40B,96C 'say':53B 'sequoia':91C 'sourc':50B 'system':39B 'taho':94C 'trigger':36B 'unspecifi':32B 'valid':80C 'write':12A,29B,73C","nicknames":[],"mitigations":[],"who_affected":"Any Mac running a macOS version earlier than the fixed releases named above is in scope, since the sources name no narrower component or configuration. The sources do not say which file types or applications trigger the flaw, so whether a given Mac is reachable remains unknown.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-26T21:18:00+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-112670","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112670","severity":null,"published_at":"2026-10-26T21:18:00+00:00","modified_at":"2026-10-26T21:18:00+00:00","first_seen_at":"2026-10-26T21:20:29+00:00","fetched_at":"2026-10-26T21:20:29+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"}