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CVE-2026-86949

Full vulnerability record from the local CVENow database.

Description

This issue was addressed by enforcing library validation on the affected binaries. This issue is fixed in Xcode 27. A malicious app may be able to break out of its sandbox.

Severity
HIGH
CVSS score
8.8 (v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-10-20 01:17:28.370000
Last modified
2026-10-29 15:53:46.093000
View original CVE JSON
{
  "id": "CVE-2026-86949",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-20T01:17:28.370",
  "lastModified": "2026-10-29T15:53:46.093",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "This issue was addressed by enforcing library validation on the affected binaries. This issue is fixed in Xcode 27. A malicious app may be able to break out of its sandbox."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Apple",
          "product": "Xcode",
          "versions": [
            {
              "version": "0",
              "lessThan": "27",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.0,
        "impactScore": 6.0
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-10-20T00:00:00+00:00",
          "id": "CVE-2026-86949",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-829"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:apple:xcode:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "27.0",
              "matchCriteriaId": "8C722BDD-C3C5-4AA3-BD39-D9464A9D2F4E"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://support.apple.com/en-us/149040",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory",
        "Release Notes"
      ]
    }
  ]
}