{"id":"CVE-2026-112666","kind":"vulnerability","aliases":["CVE-2026-112666"],"related":[],"title":"Safari and Apple OS: use-after-free crash from malicious web content","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, watchOS 27.2. Processing maliciously crafted web content may lead to an unexpected process termination.","summary":"A use-after-free memory bug in Safari and other Apple operating systems can be triggered by crafted web content. The sources say it leads to an unexpected process termination, which is a crash, not code execution.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["ios","ipados","macos","other","safari","tvos","watchos"],"not_affected_if":["already-updated-to-27.2"],"how_to_check":"- Check the device OS version in Settings > General > About (iOS, iPadOS) or `sw_vers` on macOS; unknown whether the sources list exact affected builds beyond the fixed version","fix":"- Update Safari to `27.2` and iOS, iPadOS, macOS Golden Gate, tvOS and watchOS to `27.2` or later","status":"open","published_at":"2026-10-26T21:17:59+00:00","first_seen_at":"2026-10-26T21:20:29+00:00","triaged_at":"2026-10-26T21:23:47+00:00","updated_at":"2026-10-26T21:23:47+00:00","category":"other","confidence":0.5,"triage":{"at":"2026-10-26T21:23:47Z","model":"claude-haiku-5-5","output":{"fix":"- Update Safari to `27.2` and iOS, iPadOS, macOS Golden Gate, tvOS and watchOS to `27.2` or later","reach":"internet","title":"Safari and Apple OS: use-after-free crash from malicious web content","impact":"low","summary":"A use-after-free memory bug in Safari and other Apple operating systems can be triggered by crafted web content. The sources say it leads to an unexpected process termination, which is a crash, not code execution.","category":"other","nicknames":[],"who_cares":["safari","ios","ipados","macos","tvos","watchos"],"confidence":0.5,"needs_auth":"no","worst_case":"Browser or process crashes when malicious web content is processed","analyst_note":"","how_to_check":"- Check the device OS version in Settings > General > About (iOS, iPadOS) or `sw_vers` on macOS; unknown whether the sources list exact affected builds beyond the fixed version","needs_analyst":false,"not_affected_if":["already-updated-to-27.2"],"who_is_affected":"Anyone using Safari or the listed Apple operating systems before the 27.2 release is potentially affected, since the sources describe a crash triggered by visiting or processing malicious web content. The sources do not say which configurations or content types are most exposed.","user_interaction":"yes","needs_special_setup":"unknown","severity_if_unknown":"low"},"cost_usd":0.000572,"input_tokens":3301,"output_tokens":483,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-112666':16A,19A '-2026':15A,18A '27.2':83C,85C,88C,92C,94C,96C 'address':72C 'appl':3A,38B 'bug':33B 'code':63B 'content':13A,47B,101C 'craft':45B,99C 'crash':9A,61B 'cve':14A,17A 'execut':64B 'fix':80C 'free':8A,31B,69C 'gate':91C 'golden':90C 'improv':74C 'io':20B,84C 'ipado':21B,87C 'issu':70C,78C 'lead':52B,103C 'maco':22B,89C 'malici':11A,98C 'manag':76C 'may':102C 'memori':32B,75C 'oper':39B 'os':4A 'process':56B,97C,107C 'safari':1A,24B,35B,82C 'say':50B 'sourc':49B 'system':40B 'termin':57B,108C 'trigger':43B 'tvos':25B,93C 'unexpect':55B,106C 'use':6A,29B,67C 'use-after-fre':5A,28B,66C 'watcho':26B,95C 'web':12A,46B,100C","nicknames":[],"mitigations":[],"who_affected":"Anyone using Safari or the listed Apple operating systems before the 27.2 release is potentially affected, since the sources describe a crash triggered by visiting or processing malicious web content. The sources do not say which configurations or content types are most exposed.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-26T21:17:59+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-112666","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112666","severity":null,"published_at":"2026-10-26T21:17:59+00:00","modified_at":"2026-10-26T21:17:59+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"}