{"id":"CVE-2026-112637","kind":"vulnerability","aliases":["CVE-2026-112637"],"related":[],"title":"Safari and Apple OS: use-after-free lets crafted 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 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, tvOS 27.2, visionOS 27.2, watchOS 27.2. Processing maliciously crafted web content may lead to arbitrary code execution.","summary":"A use-after-free memory bug in Safari and several Apple operating systems can be triggered by maliciously crafted web content. The sources say it may lead to arbitrary code execution.","severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["ios","ipados","macos","runtime","safari","webkit"],"not_affected_if":["already-updated-to-27.2"],"how_to_check":"- Check the Safari and OS version on each device; the sources name Safari 27.2, iOS 27.2, iPadOS 27.2, macOS Golden Gate 27.2, tvOS 27.2, visionOS 27.2 and watchOS 27.2 as the fixed releases.\n- unknown for anything beyond the version check","fix":"- Update Safari to `27.2` or later.\n- Update iOS, iPadOS, macOS Golden Gate, tvOS, visionOS and watchOS to `27.2` or later.","status":"open","published_at":"2026-10-26T21:17:57+00:00","first_seen_at":"2026-10-26T21:20:29+00:00","triaged_at":"2026-10-26T21:24:06+00:00","updated_at":"2026-10-26T21:24:06+00:00","category":"runtime","confidence":0.6,"triage":{"at":"2026-10-26T21:24:06Z","model":"claude-haiku-5-5","output":{"fix":"- Update Safari to `27.2` or later.\n- Update iOS, iPadOS, macOS Golden Gate, tvOS, visionOS and watchOS to `27.2` or later.","reach":"internet","title":"Safari and Apple OS: use-after-free lets crafted web content run code","impact":"high","summary":"A use-after-free memory bug in Safari and several Apple operating systems can be triggered by maliciously crafted web content. The sources say it may lead to arbitrary code execution.","category":"runtime","nicknames":[],"who_cares":["safari","ios","macos","ipados","webkit"],"confidence":0.6,"needs_auth":"no","worst_case":"Attacker runs arbitrary code on the device via a crafted web page","analyst_note":"Check Apple's security notes for CVE-2026-112637 to confirm the affected versions and whether exploitation is known; the NVD entry gave no severity.","how_to_check":"- Check the Safari and OS version on each device; the sources name Safari 27.2, iOS 27.2, iPadOS 27.2, macOS Golden Gate 27.2, tvOS 27.2, visionOS 27.2 and watchOS 27.2 as the fixed releases.\n- unknown for anything beyond the version check","needs_analyst":true,"not_affected_if":["already-updated-to-27.2"],"who_is_affected":"Anyone browsing with Safari or using a WebKit-based view on the listed Apple platforms before the 27.2 releases. Visiting a malicious page is the entry point, so any device that loads untrusted web content is in scope. Devices already on 27.2 or later are not affected.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000632,"input_tokens":3310,"output_tokens":602,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-112637':17A,20A '-2026':16A,19A '27.2':77C,79C,82C,86C,88C,90C,92C 'address':66C 'appl':3A,38B 'arbitrari':56B,101C 'bug':33B 'code':14A,57B,102C 'content':12A,48B,97C 'craft':10A,46B,95C 'cve':15A,18A 'execut':58B,103C 'fix':74C 'free':8A,31B,63C 'gate':85C 'golden':84C 'improv':68C 'io':21B,78C 'ipado':22B,81C 'issu':64C,72C 'lead':54B,99C 'let':9A 'maco':23B,83C 'malici':45B,94C 'manag':70C 'may':53B,98C 'memori':32B,69C 'oper':39B 'os':4A 'process':93C 'run':13A 'runtim':24B 'safari':1A,25B,35B,76C 'say':51B 'sever':37B 'sourc':50B 'system':40B 'trigger':43B 'tvos':87C 'use':6A,29B,61C 'use-after-fre':5A,28B,60C 'visiono':89C 'watcho':91C 'web':11A,47B,96C 'webkit':26B","nicknames":[],"mitigations":[],"who_affected":"Anyone browsing with Safari or using a WebKit-based view on the listed Apple platforms before the 27.2 releases. Visiting a malicious page is the entry point, so any device that loads untrusted web content is in scope. Devices already on 27.2 or later are not affected.","tier":"B","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-2026-112637","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112637","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"}