{
  "fix": "Sequoia 15.8.3",
  "url": "https://patchblox.com/security/fix/macos/sequoia-15.8.3",
  "summary": "Sequoia 15.8.3, released November 9, 2026, fixes 8 CVEs in Sequoia. One of them is being exploited (CVE-2026-111497); 1 on CISA KEV. Patch Radar priority: Patch now.",
  "platform": "macos",
  "type": "os-version",
  "title": "Sequoia 15.8.3",
  "released": "2026-11-09T00:00:00Z",
  "priority": "Patch now",
  "priorityTier": 1,
  "priorityReason": "Closes CVE-2026-111497, exploited (CISA KEV)",
  "supported": true,
  "cveCount": 8,
  "exploitedCveCount": 1,
  "kevCveCount": 1,
  "ransomwareCveCount": 0,
  "maxEpss": 0.82641,
  "maxCvss": 9.8,
  "vendorAdvisory": "https://support.apple.com/en-us/149720",
  "appliesTo": [
    {
      "product": "Sequoia",
      "productUrl": "https://patchblox.com/security/product/macos/sequoia",
      "fixedVersion": "15.8.3",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2026-111497",
      "url": "https://patchblox.com/security/cve/CVE-2026-111497",
      "title": "Google: CVE-2026-111497 Buffer overflow vulnerability in the Brotli decoder",
      "component": "brotli",
      "impact": "Processing maliciously crafted input may lead to memory corruption",
      "priority": "Patch now",
      "severity": "Important",
      "cvss": 9.8,
      "epss": 0.82641,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": true
    },
    {
      "cveId": "CVE-2026-113960",
      "url": "https://patchblox.com/security/cve/CVE-2026-113960",
      "title": "Messages: A user added to an iMessage group may be able to access messages sent before they joined",
      "component": "Messages",
      "impact": "A user added to an iMessage group may be able to access messages sent before they joined",
      "priority": "Routine",
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-113961",
      "url": "https://patchblox.com/security/cve/CVE-2026-113961",
      "title": "Messages: A remote attacker may be able to join an iMessage group chat and receive its messages",
      "component": "Messages",
      "impact": "A remote attacker may be able to join an iMessage group chat and receive its messages",
      "priority": "Routine",
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-113964",
      "url": "https://patchblox.com/security/cve/CVE-2026-113964",
      "title": "CoreUtils: An attacker in Bluetooth range may be able to bypass the rate limit on pairing code attempts and pair with a device without user interaction",
      "component": "CoreUtils",
      "impact": "An attacker in Bluetooth range may be able to bypass the rate limit on pairing code attempts and pair with a device without user interaction",
      "priority": "Routine",
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-113965",
      "url": "https://patchblox.com/security/cve/CVE-2026-113965",
      "title": "CoreUtils: A malicious Bluetooth device may be able to establish a pairing without user interaction",
      "component": "CoreUtils",
      "impact": "A malicious Bluetooth device may be able to establish a pairing without user interaction",
      "priority": "Routine",
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-113968",
      "url": "https://patchblox.com/security/cve/CVE-2026-113968",
      "title": "AirPlay: An attacker in Bluetooth range may be able to bypass the rate limit on pairing code attempts",
      "component": "AirPlay",
      "impact": "An attacker in Bluetooth range may be able to bypass the rate limit on pairing code attempts",
      "priority": "Routine",
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-113969",
      "url": "https://patchblox.com/security/cve/CVE-2026-113969",
      "title": "rapportd: An attacker on the same network may be able to bypass the rate limit on AirPlay pairing code attempts",
      "component": "rapportd",
      "impact": "An attacker on the same network may be able to bypass the rate limit on AirPlay pairing code attempts",
      "priority": "Routine",
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-113970",
      "url": "https://patchblox.com/security/cve/CVE-2026-113970",
      "title": "Bluetooth: An attacker in Bluetooth range may be able to corrupt process memory",
      "component": "Bluetooth",
      "impact": "An attacker in Bluetooth range may be able to corrupt process memory",
      "priority": "Routine",
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-10T07:50:38Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}