{"id":"CVE-2026-84604","kind":"vulnerability","aliases":["CVE-2026-84604"],"related":[],"title":"macOS: crafted audit file can corrupt process memory via stack overflow","description":"A stack buffer overflow was addressed through improved input validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. Processing a maliciously crafted audit file may corrupt process memory.","summary":"A stack buffer overflow in macOS audit file processing can corrupt process memory when a maliciously crafted audit file is parsed. The sources do not state whether this leads to code execution or only a crash.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["infrastructure","macos"],"not_affected_if":["patched-macos"],"how_to_check":"- unknown","fix":"- Update macOS to Golden Gate 27, Sequoia `15.8.2`, or Tahoe `26.7.2` (the fixed releases named in the description)","status":"open","published_at":"2026-10-26T21:20:15+00:00","first_seen_at":"2026-10-26T21:55:21+00:00","triaged_at":"2026-10-26T21:57:09+00:00","updated_at":"2026-10-26T21:57:09+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-10-26T21:57:09Z","model":"claude-haiku-5-5","output":{"fix":"- Update macOS to Golden Gate 27, Sequoia `15.8.2`, or Tahoe `26.7.2` (the fixed releases named in the description)","reach":"unknown","title":"macOS: crafted audit file can corrupt process memory via stack overflow","impact":"medium","summary":"A stack buffer overflow in macOS audit file processing can corrupt process memory when a maliciously crafted audit file is parsed. The sources do not state whether this leads to code execution or only a crash.","category":"infrastructure","nicknames":[],"who_cares":["macos","infrastructure"],"confidence":0.5,"needs_auth":"unknown","worst_case":"Process memory corruption from a crafted audit file; code execution not stated","analyst_note":"Check the Apple security notes for this CVE to confirm impact, trigger path and whether audit file parsing is reachable remotely.","how_to_check":"- unknown","needs_analyst":true,"not_affected_if":["patched-macos"],"who_is_affected":"Machines running macOS releases older than the fixed versions named in the description. The sources do not say which audit-file workflows reach the vulnerable code, so unknown whether servers or only workstations are most exposed.","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000557,"input_tokens":3284,"output_tokens":458,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2026':13A,16A '-84604':14A,17A '15.8.2':77C '26.7.2':80C '27':74C 'address':61C 'audit':3A,26B,37B,85C 'buffer':22B,58C 'code':50B 'corrupt':6A,30B,88C 'craft':2A,36B,84C 'crash':55B 'cve':12A,15A 'execut':51B 'file':4A,27B,38B,86C 'fix':69C 'gate':73C 'golden':72C 'improv':63C 'infrastructur':18B 'input':64C 'issu':67C 'lead':48B 'maco':1A,19B,25B,71C,75C,78C 'malici':35B,83C 'may':87C 'memori':8A,32B,90C 'overflow':11A,23B,59C 'pars':40B 'process':7A,28B,31B,81C,89C 'sequoia':76C 'sourc':42B 'stack':10A,21B,57C 'state':45B 'taho':79C 'valid':65C 'via':9A 'whether':46B","nicknames":[],"mitigations":[],"who_affected":"Machines running macOS releases older than the fixed versions named in the description. The sources do not say which audit-file workflows reach the vulnerable code, so unknown whether servers or only workstations are most exposed.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-26T21:20:15+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-84604","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-84604","severity":null,"published_at":"2026-10-26T21:20:15+00:00","modified_at":"2026-10-26T21:20:15+00:00","first_seen_at":"2026-10-26T21:55:21+00:00","fetched_at":"2026-10-26T21:55:21+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"}