{"id":"CVE-2026-86913","kind":"vulnerability","aliases":["CVE-2026-86913"],"related":[],"title":"Apple OS: crafted media file can crash apps or corrupt memory","description":"A use after free issue was addressed with improved memory management. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. Processing a maliciously crafted media file may lead to unexpected app termination or corrupt process memory.","summary":"A use-after-free bug in Apple's media processing lets a maliciously crafted media file terminate an app or corrupt process memory. The sources do not say whether code execution is possible.","severity":"medium","cvss":5.4,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["apple-devices","infrastructure","ios","ipados","macos","tvos","visionos","watchos"],"not_affected_if":["already-patched"],"how_to_check":"- Check the installed OS version under Settings > General > About (iOS, iPadOS, watchOS, tvOS, visionOS) or `sw_vers` on macOS\n- unknown for any other check, the sources do not say","fix":"- Update iOS and iPadOS to `26.7` or `27`\n- Update macOS Tahoe to `26.7`, macOS Sequoia to `15.8`, or macOS Golden Gate to `27`\n- Update tvOS, visionOS and watchOS to `27`","status":"open","published_at":"2026-10-20T01:17:26+00:00","first_seen_at":"2026-10-23T21:57:19+00:00","triaged_at":"2026-10-25T04:16:39+00:00","updated_at":"2026-10-25T04:16:39+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-25T04:16:39Z","model":"claude-haiku-5-5","output":{"fix":"- Update iOS and iPadOS to `26.7` or `27`\n- Update macOS Tahoe to `26.7`, macOS Sequoia to `15.8`, or macOS Golden Gate to `27`\n- Update tvOS, visionOS and watchOS to `27`","reach":"unknown","title":"Apple OS: crafted media file can crash apps or corrupt memory","impact":"medium","summary":"A use-after-free bug in Apple's media processing lets a maliciously crafted media file terminate an app or corrupt process memory. The sources do not say whether code execution is possible.","category":"infrastructure","nicknames":[],"who_cares":["ios","ipados","macos","tvos","visionos","watchos","apple-devices"],"confidence":0.6,"needs_auth":"no","worst_case":"Crashes an app or corrupts process memory after opening a crafted file","analyst_note":"","how_to_check":"- Check the installed OS version under Settings > General > About (iOS, iPadOS, watchOS, tvOS, visionOS) or `sw_vers` on macOS\n- unknown for any other check, the sources do not say","needs_analyst":false,"not_affected_if":["already-patched"],"who_is_affected":"Devices running the Apple OS versions listed in the fix are affected, since the flaw sits in system media handling that any app can reach when it opens a file. The sources do not say whether a specific app or media format is needed to trigger it. Devices already on the fixed versions can skip it.","user_interaction":"yes","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000611,"input_tokens":3347,"output_tokens":552,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-2026':13A,16A '-86913':14A,17A '15.8':94C '26.7':79C,82C,97C '27':84C,87C,91C,99C,101C,103C 'address':68C 'app':8A,47B,114C 'appl':1A,19B,35B 'apple-devic':18B 'bug':33B 'code':58B 'corrupt':10A,49B,117C 'craft':3A,42B,107C 'crash':7A 'cve':12A,15A 'devic':20B 'execut':59B 'file':5A,44B,109C 'fix':76C 'free':32B,65C 'gate':90C 'golden':89C 'improv':70C 'infrastructur':21B 'io':22B,78C,83C 'ipado':23B,81C,86C 'issu':66C,74C 'lead':111C 'let':39B 'maco':24B,88C,92C,95C 'malici':41B,106C 'manag':72C 'may':110C 'media':4A,37B,43B,108C 'memori':11A,51B,71C,119C 'os':2A 'possibl':61B 'process':38B,50B,104C,118C 'say':56B 'sequoia':93C 'sourc':53B 'taho':96C 'termin':45B,115C 'tvos':25B,98C 'unexpect':113C 'use':30B,63C 'use-after-fre':29B 'visiono':26B,100C 'watcho':27B,102C 'whether':57B","nicknames":[],"mitigations":[],"who_affected":"Devices running the Apple OS versions listed in the fix are affected, since the flaw sits in system media handling that any app can reach when it opens a file. The sources do not say whether a specific app or media format is needed to trigger it. Devices already on the fixed versions can skip it.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T01:17:26+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L","cvss_by":"134c704f-9b21-4f2e-91b3-4a467353bcc0","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-86913","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86913","severity":null,"published_at":"2026-10-20T01:17:26+00:00","modified_at":"2026-10-20T15:17:34+00:00","first_seen_at":"2026-10-23T21:57:19+00:00","fetched_at":"2026-10-23T22:28:57+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"}