macOS — security advisory

{
  "id": "05dc31a606ccddad4fbf72d2fa4fda734ed2d86654b94a5eb8d88824d9fc733e",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-86958",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-86958",
    "summary": "The issue was addressed with improved memory handling. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. An attacker with memory write capability may be able to bypass pointer authentication codes and run arbitrary code.",
    "evidence": "cve:CVE-2026-86958",
    "products": [
      {
        "name": {
          "value": "macOS",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-86958",
      "aliases": [
        "CVE-2026-86958"
      ],
      "metrics": [],
      "affected": [
        {
          "vendor": "Apple",
          "product": "macOS",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "15.8.2",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "0",
              "lessThan": "26.7.2",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "0",
              "lessThan": "27",
              "versionType": "custom"
            }
          ]
        }
      ],
      "modified": "2026-10-26T20:40:14.703Z",
      "provider": "cve",
      "references": [
        "https://support.apple.com/en-us/149035",
        "https://support.apple.com/en-us/149522",
        "https://support.apple.com/en-us/149523"
      ],
      "provider_metadata": {
        "cna": {
          "orgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
          "shortName": "apple",
          "dateUpdated": "2026-10-26T20:40:14.703Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-86958",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-cve",
  "document_id": 344519,
  "published_at": "2026-10-26T20:40:14.703+00:00"
}