{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-84590", "assignerOrgId": "286789f9-fbc2-4510-9f9a-43facdede74c", "state": "PUBLISHED", "assignerShortName": "apple", "dateReserved": "2026-09-01T21:13:17.758Z", "datePublished": "2026-10-26T20:40:54.778Z", "dateUpdated": "2026-10-26T20:40:54.778Z"}, "containers": {"cna": {"problemTypes": [{"descriptions": [{"lang": "en", "description": "A remote attacker may be able to cause unexpected app termination or heap corruption"}]}], "affected": [{"vendor": "Apple", "product": "macOS", "versions": [{"version": "0", "status": "affected", "lessThan": "15.8.2", "versionType": "custom"}, {"version": "0", "status": "affected", "lessThan": "26.7.2", "versionType": "custom"}, {"version": "0", "status": "affected", "lessThan": "27.2", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. A remote attacker may be able to cause unexpected app termination or heap corruption."}], "references": [{"url": "https://support.apple.com/en-us/149521"}, {"url": "https://support.apple.com/en-us/149522"}, {"url": "https://support.apple.com/en-us/149523"}], "providerMetadata": {"orgId": "286789f9-fbc2-4510-9f9a-43facdede74c", "shortName": "apple", "dateUpdated": "2026-10-26T20:40:54.778Z"}}}}

{}

{"affected": [{"affectedData": [{"product": "macOS", "vendor": "Apple", "versions": [{"lessThan": "15.8.2", "status": "affected", "version": "0", "versionType": "custom"}, {"lessThan": "26.7.2", "status": "affected", "version": "0", "versionType": "custom"}, {"lessThan": "27.2", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "product-security@apple.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. A remote attacker may be able to cause unexpected app termination or heap corruption."}], "id": "CVE-2026-84590", "lastModified": "2026-10-27T14:52:57.863", "metrics": {}, "published": "2026-10-26T21:20:13.800", "references": [{"source": "product-security@apple.com", "url": "https://support.apple.com/en-us/149521"}, {"source": "product-security@apple.com", "url": "https://support.apple.com/en-us/149522"}, {"source": "product-security@apple.com", "url": "https://support.apple.com/en-us/149523"}], "sourceIdentifier": "product-security@apple.com", "vulnStatus": "Awaiting Analysis"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,15.8.2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,26.7.2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,27.2)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "macOS", "source": "cna", "vendor": "Apple"}, "product": "macos", "vendor": "apple"}], "created": "2026-10-27T00:45:14.256116+00:00", "title": "Out-of-Bounds Write in macOS Could Lead to Heap Corruption and Application Termination", "updated": "2026-10-27T01:30:15.725496+00:00", "vendors": ["apple", "apple$PRODUCT$macos"], "weaknesses": ["CWE-126"]}