{"id":"CVE-2026-112611","kind":"vulnerability","aliases":["CVE-2026-112611"],"related":[],"title":"Apple iOS and macOS: crafted PDF can corrupt memory","description":"An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and iPadOS 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. Processing a maliciously crafted PDF file may lead to memory corruption.","summary":"An out-of-bounds write in Apple's PDF processing lets a maliciously crafted PDF corrupt memory on the device. Successful exploitation could lead to code execution, though the sources do not state the outcome beyond memory corruption.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["apple","infrastructure","ios","ipados","macos","pdf"],"not_affected_if":["already-on-fixed-version"],"how_to_check":"- Check the device version under Settings > General > About (iOS/iPadOS) or Apple menu > About This Mac (macOS)\n- Compare against the fixed versions: iOS and iPadOS `26.7.2` or `27.2`, macOS Sequoia `15.8.2`, macOS Tahoe `26.7.2`","fix":"- Update iOS and iPadOS to `26.7.2` (26.x line) or `27.2` (27.x line)\n- Update macOS Sequoia to `15.8.2` and macOS Tahoe to `26.7.2`","status":"open","published_at":"2026-10-26T21:17:53+00:00","first_seen_at":"2026-10-26T21:20:28+00:00","triaged_at":"2026-10-26T21:27:24+00:00","updated_at":"2026-10-26T21:27:24+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-10-26T21:27:24Z","model":"claude-haiku-5-5","output":{"fix":"- Update iOS and iPadOS to `26.7.2` (26.x line) or `27.2` (27.x line)\n- Update macOS Sequoia to `15.8.2` and macOS Tahoe to `26.7.2`","reach":"unknown","title":"Apple iOS and macOS: crafted PDF can corrupt memory","impact":"high","summary":"An out-of-bounds write in Apple's PDF processing lets a maliciously crafted PDF corrupt memory on the device. Successful exploitation could lead to code execution, though the sources do not state the outcome beyond memory corruption.","category":"infrastructure","nicknames":[],"who_cares":["apple","ios","ipados","macos","pdf"],"confidence":0.5,"needs_auth":"no","worst_case":"Malicious PDF corrupts memory on the device, possibly enabling code execution","analyst_note":"Check Apple's security release notes for this CVE to confirm attack vector, whether code execution is demonstrated, and exploitation status.","how_to_check":"- Check the device version under Settings > General > About (iOS/iPadOS) or Apple menu > About This Mac (macOS)\n- Compare against the fixed versions: iOS and iPadOS `26.7.2` or `27.2`, macOS Sequoia `15.8.2`, macOS Tahoe `26.7.2`","needs_analyst":true,"not_affected_if":["already-on-fixed-version"],"who_is_affected":"Any Apple device that opens PDF files, including through Mail, Safari, Messages or file previews, is in scope per the affected platforms listed. Teams running fleets of Apple devices should confirm the OS build; the sources do not describe a specific configuration that makes a device more exposed.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000649,"input_tokens":3324,"output_tokens":634,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-112611':12A,15A '-2026':11A,14A '15.8.2':91C '26.7.2':80C,83C,94C '27.2':85C,88C 'address':69C 'appl':1A,16B,29B 'beyond':58B 'bound':26B,65C,72C 'check':73C 'code':48B 'corrupt':8A,38B,60B,105C 'could':45B 'craft':5A,36B,98C 'cve':10A,13A 'devic':42B 'execut':49B 'exploit':44B 'file':100C 'fix':77C 'improv':71C 'infrastructur':17B 'io':2A,18B,79C,84C 'ipado':19B,82C,87C 'issu':67C,75C 'lead':46B,102C 'let':33B 'maco':4A,20B,89C,92C 'malici':35B,97C 'may':101C 'memori':9A,39B,59B,104C 'out-of-bound':23B,62C 'outcom':57B 'pdf':6A,21B,31B,37B,99C 'process':32B,95C 'sequoia':90C 'sourc':52B 'state':55B 'success':43B 'taho':93C 'though':50B 'write':27B,66C","nicknames":[],"mitigations":[],"who_affected":"Any Apple device that opens PDF files, including through Mail, Safari, Messages or file previews, is in scope per the affected platforms listed. Teams running fleets of Apple devices should confirm the OS build; the sources do not describe a specific configuration that makes a device more exposed.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-26T21:17:53+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-112611","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112611","severity":null,"published_at":"2026-10-26T21:17:53+00:00","modified_at":"2026-10-26T21:17:53+00:00","first_seen_at":"2026-10-26T21:20:28+00:00","fetched_at":"2026-10-26T21:20:28+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"}