{"id":"CVE-2026-86943","kind":"vulnerability","aliases":["CVE-2026-86943"],"related":[],"title":"Apple macOS: memory handling flaw allows remote denial-of-service","description":"The issue was addressed with improved memory handling. This issue is fixed in macOS Golden Gate 27.2. A remote attacker may be able to cause a denial-of-service.","summary":"Apple fixed a memory handling issue in macOS Golden Gate 27.2. A remote attacker may be able to crash the affected system or service, causing denial-of-service.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["apple-devices","macos","other"],"not_affected_if":["already-on-golden-gate-27.2"],"how_to_check":"- Run `sw_vers -productVersion` on each Mac and compare against the fixed release.\n- unknown","fix":"- Update macOS to `Golden Gate 27.2` or later.","status":"open","published_at":"2026-10-26T21:20:32+00:00","first_seen_at":"2026-10-26T21:55:22+00:00","triaged_at":"2026-10-26T21:56:49+00:00","updated_at":"2026-10-26T21:56:49+00:00","category":"other","confidence":0.5,"triage":{"at":"2026-10-26T21:56:49Z","model":"claude-haiku-5-5","output":{"fix":"- Update macOS to `Golden Gate 27.2` or later.","reach":"unknown","title":"Apple macOS: memory handling flaw allows remote denial-of-service","impact":"low","summary":"Apple fixed a memory handling issue in macOS Golden Gate 27.2. A remote attacker may be able to crash the affected system or service, causing denial-of-service.","category":"other","nicknames":[],"who_cares":["macos","apple-devices"],"confidence":0.5,"needs_auth":"unknown","worst_case":"Remote attacker crashes the system or service, causing denial-of-service.","analyst_note":"Check Apple's security release notes for CVE-2026-86943 to identify the affected component and whether the trigger is network-reachable and needs user interaction.","how_to_check":"- Run `sw_vers -productVersion` on each Mac and compare against the fixed release.\n- unknown","needs_analyst":true,"not_affected_if":["already-on-golden-gate-27.2"],"who_is_affected":"Macs running macOS Golden Gate versions before 27.2 are affected according to the advisory text. The sources do not describe which network service or data path is involved, so teams cannot tell from this text whether a given Mac is reachable remotely. unknown","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000561,"input_tokens":3243,"output_tokens":474,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2026':13A,16A '-86943':14A,17A '27.2':32B,67C 'abl':38B,73C 'address':54C 'affect':42B 'allow':6A 'appl':1A,19B,22B 'apple-devic':18B 'attack':35B,70C 'caus':46B,75C 'crash':40B 'cve':12A,15A 'denial':9A,48B,78C 'denial-of-servic':8A,47B,77C 'devic':20B 'fix':23B,62C 'flaw':5A 'gate':31B,66C 'golden':30B,65C 'handl':4A,26B,58C 'improv':56C 'issu':27B,52C,60C 'maco':2A,21B,29B,64C 'may':36B,71C 'memori':3A,25B,57C 'remot':7A,34B,69C 'servic':11A,45B,50B,80C 'system':43B","nicknames":[],"mitigations":[],"who_affected":"Macs running macOS Golden Gate versions before 27.2 are affected according to the advisory text. The sources do not describe which network service or data path is involved, so teams cannot tell from this text whether a given Mac is reachable remotely. unknown","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-26T21:20:32+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-86943","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86943","severity":null,"published_at":"2026-10-26T21:20:32+00:00","modified_at":"2026-10-26T21:20:32+00:00","first_seen_at":"2026-10-26T21:55:22+00:00","fetched_at":"2026-10-26T21:55:22+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"}