{"id":"CVE-2026-112639","kind":"vulnerability","aliases":["CVE-2026-112639"],"related":[],"title":"Apple Safari and iOS: use-after-free lets malicious web content run code","description":"A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 27.2, iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, visionOS 27.2. Processing maliciously crafted web content may lead to arbitrary code execution.","summary":"A use-after-free memory bug in Apple's WebKit-based browser and operating systems can be triggered by crafted web content. Per the description, an attacker could run arbitrary code on the affected device.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["ios","ipados","macos","other","safari","visionos"],"not_affected_if":["already-updated"],"how_to_check":"- Check the device or Safari version under Settings > General > About (iOS and iPadOS) or Safari > About Safari (macOS)\n- Compare against fixed versions: Safari `27.2`, iOS and iPadOS `26.7.2` or `27.2`, macOS Golden Gate `27.2`, visionOS `27.2`","fix":"- Update Safari to `27.2` on macOS\n- Update iOS and iPadOS to `26.7.2` or `27.2`, macOS Golden Gate to `27.2`, visionOS to `27.2`","status":"open","published_at":"2026-10-26T21:17:57+00:00","first_seen_at":"2026-10-26T21:20:29+00:00","triaged_at":"2026-10-26T21:24:03+00:00","updated_at":"2026-10-26T21:24:03+00:00","category":"other","confidence":0.6,"triage":{"at":"2026-10-26T21:24:03Z","model":"claude-haiku-5-5","output":{"fix":"- Update Safari to `27.2` on macOS\n- Update iOS and iPadOS to `26.7.2` or `27.2`, macOS Golden Gate to `27.2`, visionOS to `27.2`","reach":"internet","title":"Apple Safari and iOS: use-after-free lets malicious web content run code","impact":"high","summary":"A use-after-free memory bug in Apple's WebKit-based browser and operating systems can be triggered by crafted web content. Per the description, an attacker could run arbitrary code on the affected device.","category":"other","nicknames":[],"who_cares":["safari","ios","ipados","macos","visionos"],"confidence":0.6,"needs_auth":"no","worst_case":"Arbitrary code runs on the device via crafted web content.","analyst_note":"Check Apple's security release notes for affected versions and whether exploitation is known; the source gives no severity or CVSS score.","how_to_check":"- Check the device or Safari version under Settings > General > About (iOS and iPadOS) or Safari > About Safari (macOS)\n- Compare against fixed versions: Safari `27.2`, iOS and iPadOS `26.7.2` or `27.2`, macOS Golden Gate `27.2`, visionOS `27.2`","needs_analyst":true,"not_affected_if":["already-updated"],"who_is_affected":"Anyone browsing with an affected Safari or Apple OS build can be exposed by visiting a malicious page. Teams running fleets of Apple devices should update them; the sources do not describe server-side exposure.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"unknown"},"cost_usd":0.000619,"input_tokens":3315,"output_tokens":575,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-112639':17A,20A '-2026':16A,19A '26.7.2':84C,87C '27.2':82C,89C,92C,96C,98C 'address':71C 'affect':62B 'appl':1A,35B 'arbitrari':58B,107C 'attack':55B 'base':39B 'browser':40B 'bug':33B 'code':14A,59B,108C 'content':12A,50B,103C 'could':56B 'craft':48B,101C 'cve':15A,18A 'descript':53B 'devic':63B 'execut':109C 'fix':79C 'free':8A,31B,68C 'gate':95C 'golden':94C 'improv':73C 'io':4A,21B,83C,88C 'ipado':22B,86C,91C 'issu':69C,77C 'lead':105C 'let':9A 'maco':23B,93C 'malici':10A,100C 'manag':75C 'may':104C 'memori':32B,74C 'oper':42B 'per':51B 'process':99C 'run':13A,57B 'safari':2A,25B,81C 'system':43B 'trigger':46B 'use':6A,29B,66C 'use-after-fre':5A,28B,65C 'visiono':26B,97C 'web':11A,49B,102C 'webkit':38B 'webkit-bas':37B","nicknames":[],"mitigations":[],"who_affected":"Anyone browsing with an affected Safari or Apple OS build can be exposed by visiting a malicious page. Teams running fleets of Apple devices should update them; the sources do not describe server-side exposure.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-26T21:17:57+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-112639","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112639","severity":null,"published_at":"2026-10-26T21:17:57+00:00","modified_at":"2026-10-26T21:17:57+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"}