{"id":"CVE-2026-112690","kind":"vulnerability","aliases":["CVE-2026-112690"],"related":[],"title":"Apple WebKit: input validation flaw lets remote attacker escape WebContent sandbox","description":"This issue was addressed with improved input validation. This issue is fixed in iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2, visionOS 27.2. A remote attacker may be able to break out of the WebContent sandbox.","summary":"Apple patched an input validation flaw in its operating systems that lets a remote attacker break out of the WebContent sandbox used by Safari and other WebKit-based views. The sources do not give a CVSS score or say whether the flaw is exploited.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["apple","infrastructure","ios","ipados","macos","safari","visionos","webkit"],"not_affected_if":["already-patched"],"how_to_check":"- Check the installed iOS, iPadOS, macOS or visionOS version under Settings > General > About (or `sw_vers` on macOS) and compare it to the fixed releases.\n- unknown for any other check, as the sources give no configuration details.","fix":"- Update iOS and iPadOS to `26.7.2` or `27.2`.\n- Update macOS Tahoe to `26.7.2`, macOS Sequoia to `15.8.2`, and macOS Golden Gate to `27.2`.\n- Update visionOS to `27.2`.","status":"open","published_at":"2026-10-26T21:18:03+00:00","first_seen_at":"2026-10-26T21:20:30+00:00","triaged_at":"2026-10-26T21:23:25+00:00","updated_at":"2026-10-26T21:23:25+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-10-26T21:23:25Z","model":"claude-haiku-5-5","output":{"fix":"- Update iOS and iPadOS to `26.7.2` or `27.2`.\n- Update macOS Tahoe to `26.7.2`, macOS Sequoia to `15.8.2`, and macOS Golden Gate to `27.2`.\n- Update visionOS to `27.2`.","reach":"internet","title":"Apple WebKit: input validation flaw lets remote attacker escape WebContent sandbox","impact":"high","summary":"Apple patched an input validation flaw in its operating systems that lets a remote attacker break out of the WebContent sandbox used by Safari and other WebKit-based views. The sources do not give a CVSS score or say whether the flaw is exploited.","category":"infrastructure","nicknames":[],"who_cares":["apple","ios","ipados","macos","visionos","safari","webkit"],"confidence":0.5,"needs_auth":"no","worst_case":"remote attacker escapes browser sandbox into the operating system","analyst_note":"Check Apple's security release notes for these versions to confirm the affected component, exploitation status and user interaction needed; the NVD entry gives no detail.","how_to_check":"- Check the installed iOS, iPadOS, macOS or visionOS version under Settings > General > About (or `sw_vers` on macOS) and compare it to the fixed releases.\n- unknown for any other check, as the sources give no configuration details.","needs_analyst":true,"not_affected_if":["already-patched"],"who_is_affected":"Any Apple device running a version older than the fixed releases is exposed, since the flaw is in the operating system rather than an app. The sources do not say which WebKit component or configuration is needed, so unknown whether managed or non-default setups differ. Devices already on the fixed versions are not affected.","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000654,"input_tokens":3325,"output_tokens":642,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-112690':14A,17A '-2026':13A,16A '15.8.2':100C '26.7.2':85C,88C,103C '27.2':90C,93C,97C,105C 'abl':111C 'address':74C 'appl':1A,18B,26B 'attack':8A,40B,108C 'base':54B 'break':41B,113C 'cve':12A,15A 'cvss':62B 'escap':9A 'exploit':70B 'fix':82C 'flaw':5A,31B,68B 'gate':96C 'give':60B 'golden':95C 'improv':76C 'infrastructur':19B 'input':3A,29B,77C 'io':20B,84C,89C 'ipado':21B,87C,92C 'issu':72C,80C 'let':6A,37B 'maco':22B,94C,98C,101C 'may':109C 'oper':34B 'patch':27B 'remot':7A,39B,107C 'safari':23B,49B 'sandbox':11A,46B,118C 'say':65B 'score':63B 'sequoia':99C 'sourc':57B 'system':35B 'taho':102C 'use':47B 'valid':4A,30B,78C 'view':55B 'visiono':24B,104C 'webcont':10A,45B,117C 'webkit':2A,25B,53B 'webkit-bas':52B 'whether':66B","nicknames":[],"mitigations":[],"who_affected":"Any Apple device running a version older than the fixed releases is exposed, since the flaw is in the operating system rather than an app. The sources do not say which WebKit component or configuration is needed, so unknown whether managed or non-default setups differ. Devices already on the fixed versions are not affected.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-26T21:18:03+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-112690","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112690","severity":null,"published_at":"2026-10-26T21:18:03+00:00","modified_at":"2026-10-26T21:18:03+00:00","first_seen_at":"2026-10-26T21:20:30+00:00","fetched_at":"2026-10-26T21:20:30+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"}