{"id":"CVE-2026-113945","kind":"vulnerability","aliases":["CVE-2026-113945"],"related":[],"title":"macOS: out-of-bounds read can crash the system, fixed in 27.2","description":"An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27.2. An app may be able to cause unexpected system termination.","summary":"An out-of-bounds memory read in macOS let an app trigger an unexpected system termination. Apple fixed it with improved bounds checking in macOS Golden Gate 27.2.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["endpoints","infrastructure","macos"],"not_affected_if":["already-on-27.2"],"how_to_check":"- Run `sw_vers -productVersion` on the Mac and compare it with `27.2`\n- Check Software Update in System Settings for pending macOS updates","fix":"- Update macOS to `27.2` or later","status":"open","published_at":"2026-10-26T21:18:10+00:00","first_seen_at":"2026-10-26T21:20:31+00:00","triaged_at":"2026-10-26T21:21:40+00:00","updated_at":"2026-10-26T21:21:40+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-10-26T21:21:40Z","model":"claude-haiku-5-5","output":{"fix":"- Update macOS to `27.2` or later","reach":"local","title":"macOS: out-of-bounds read can crash the system, fixed in 27.2","impact":"low","summary":"An out-of-bounds memory read in macOS let an app trigger an unexpected system termination. Apple fixed it with improved bounds checking in macOS Golden Gate 27.2.","category":"infrastructure","nicknames":[],"who_cares":["macos","endpoints"],"confidence":0.5,"needs_auth":"unknown","worst_case":"An app crashes the whole system, causing a denial of service","analyst_note":"","how_to_check":"- Run `sw_vers -productVersion` on the Mac and compare it with `27.2`\n- Check Software Update in System Settings for pending macOS updates","needs_analyst":false,"not_affected_if":["already-on-27.2"],"who_is_affected":"macOS machines running a release before Golden Gate 27.2. The description says an app can trigger the crash, so any Mac that runs untrusted or third-party apps is in scope. The sources do not say which macOS builds are affected beyond that.","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"low"},"cost_usd":0.000537,"input_tokens":3253,"output_tokens":424,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-113945':16A,19A '-2026':15A,18A '27.2':13A,51B,72C 'abl':77C 'address':59C 'app':34B,74C 'appl':40B 'bound':5A,27B,45B,56C,62C 'caus':79C 'check':46B,63C 'crash':8A 'cve':14A,17A 'endpoint':20B 'fix':11A,41B,67C 'gate':50B,71C 'golden':49B,70C 'improv':44B,61C 'infrastructur':21B 'issu':65C 'let':32B 'maco':1A,22B,31B,48B,69C 'may':75C 'memori':28B 'out-of-bound':2A,24B,53C 'read':6A,29B,57C 'system':10A,38B,81C 'termin':39B,82C 'trigger':35B 'unexpect':37B,80C","nicknames":[],"mitigations":[],"who_affected":"macOS machines running a release before Golden Gate 27.2. The description says an app can trigger the crash, so any Mac that runs untrusted or third-party apps is in scope. The sources do not say which macOS builds are affected beyond that.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-26T21:18:10+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-113945","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113945","severity":null,"published_at":"2026-10-26T21:18:10+00:00","modified_at":"2026-10-26T21:18:10+00:00","first_seen_at":"2026-10-26T21:20:31+00:00","fetched_at":"2026-10-26T21:20:31+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"}