{"id":"CVE-2026-112640","kind":"vulnerability","aliases":["CVE-2026-112640"],"related":[],"title":"Apple Safari and iOS: use-after-free lets crafted web content corrupt memory","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, tvOS 27.2, visionOS 27.2, watchOS 27.2. Processing maliciously crafted web content may lead to memory corruption.","summary":"A use-after-free bug in Apple's WebKit-based browser engine lets maliciously crafted web content corrupt memory. Memory corruption from web content can be used to run attacker code in the browser process.","severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["ios","ipados","macos","safari","tvos","vendor","visionos","watchos","webkit"],"not_affected_if":["already-patched"],"how_to_check":"- Check the Safari version under Safari > About Safari, or the OS version under Settings > General > About\n- Compare against the fixed builds: Safari `27.2`, iOS and iPadOS `26.7.2` or `27.2`, macOS `27.2`, tvOS, visionOS and watchOS `27.2`","fix":"- Update Safari to `27.2` or later\n- Update iOS and iPadOS to `26.7.2` or `27.2`, macOS to `27.2`, tvOS, visionOS and watchOS 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":"2026-10-26T21:24:02+00:00","updated_at":"2026-10-26T21:24:02+00:00","category":"vendor","confidence":0.6,"triage":{"at":"2026-10-26T21:24:02Z","model":"claude-haiku-5-5","output":{"fix":"- Update Safari to `27.2` or later\n- Update iOS and iPadOS to `26.7.2` or `27.2`, macOS to `27.2`, tvOS, visionOS and watchOS to `27.2`","reach":"internet","title":"Apple Safari and iOS: use-after-free lets crafted web content corrupt memory","impact":"high","summary":"A use-after-free bug in Apple's WebKit-based browser engine lets maliciously crafted web content corrupt memory. Memory corruption from web content can be used to run attacker code in the browser process.","category":"vendor","nicknames":[],"who_cares":["safari","ios","ipados","macos","tvos","visionos","watchos","webkit"],"confidence":0.6,"needs_auth":"no","worst_case":"Attacker code runs in the browser process after a victim visits a page","analyst_note":"Sources give only the NVD entry and no CVSS or exploitation status; check Apple's security notes for the affected WebKit component and whether the flaw is in the renderer or a sandbox-escape path.","how_to_check":"- Check the Safari version under Safari > About Safari, or the OS version under Settings > General > About\n- Compare against the fixed builds: Safari `27.2`, iOS and iPadOS `26.7.2` or `27.2`, macOS `27.2`, tvOS, visionOS and watchOS `27.2`","needs_analyst":true,"not_affected_if":["already-patched"],"who_is_affected":"Any Apple device running the listed versions is affected, since any app that renders web content with WebKit can be fed the crafted page. Fleets of Apple devices and teams with Apple-based kiosks or browsers should patch. Devices already on the fixed builds are not affected.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.00065,"input_tokens":3330,"output_tokens":634,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-112640':17A,20A '-2026':16A,19A '26.7.2':87C,90C '27.2':85C,92C,95C,99C,101C,103C,105C 'address':74C 'appl':1A,37B 'attack':61B 'base':41B 'browser':42B,65B 'bug':35B 'code':62B 'content':12A,48B,55B,110C 'corrupt':13A,49B,52B,115C 'craft':10A,46B,108C 'cve':15A,18A 'engin':43B 'fix':82C 'free':8A,34B,71C 'gate':98C 'golden':97C 'improv':76C 'io':4A,21B,86C,91C 'ipado':22B,89C,94C 'issu':72C,80C 'lead':112C 'let':9A,44B 'maco':23B,96C 'malici':45B,107C 'manag':78C 'may':111C 'memori':14A,50B,51B,77C,114C 'process':66B,106C 'run':60B 'safari':2A,24B,84C 'tvos':25B,100C 'use':6A,32B,58B,69C 'use-after-fre':5A,31B,68C 'vendor':26B 'visiono':27B,102C 'watcho':28B,104C 'web':11A,47B,54B,109C 'webkit':29B,40B 'webkit-bas':39B","nicknames":[],"mitigations":[],"who_affected":"Any Apple device running the listed versions is affected, since any app that renders web content with WebKit can be fed the crafted page. Fleets of Apple devices and teams with Apple-based kiosks or browsers should patch. Devices already on the fixed builds 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-2026-112640","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112640","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"}