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CVE-2026-43821

Estado: ModificadaMedia (6.5)—

An access issue was addressed with improved access restrictions. This issue is fixed in Safari 26.6, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. An app may be able to read files outside of its sandbox.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (7)

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-43821",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-43821",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-07-28T19:12:12.305452Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "product-security@apple.com",
      "affectedData": [
        {
          "vendor": "Apple",
          "product": "Safari",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "26.6",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Apple",
          "product": "iOS and iPadOS",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "18.7.10",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "0",
              "lessThan": "26.6",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Apple",
          "product": "macOS",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "26.6",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Apple",
          "product": "tvOS",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "26.6",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Apple",
          "product": "visionOS",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "26.6",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Apple",
          "product": "watchOS",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "26.6",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-07-27T21:17:05.010",
  "references": [
    {
      "url": "https://support.apple.com/en-us/128066",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "source": "product-security@apple.com"
    },
    {
      "url": "https://support.apple.com/en-us/128067",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "source": "product-security@apple.com"
    },
    {
      "url": "https://support.apple.com/en-us/128068",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "source": "product-security@apple.com"
    },
    {
      "url": "https://support.apple.com/en-us/128069",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "source": "product-security@apple.com"
    },
    {
      "url": "https://support.apple.com/en-us/128070",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "source": "product-security@apple.com"
    },
    {
      "url": "https://support.apple.com/en-us/128073",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "source": "product-security@apple.com"
    },
    {
      "url": "https://support.apple.com/en-us/148287",
      "source": "product-security@apple.com"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-284"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An access issue was addressed with improved access restrictions. This issue is fixed in Safari 26.6, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. An app may be able to read files outside of its sandbox."
    }
  ],
  "lastModified": "2026-08-17T22:17:13.787",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7E5C1170-D473-4747-ADE6-4F3F309F7A27",
              "versionEndExcluding": "26.6"
            },
            {
              "criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AB0E13A1-17E9-4198-A359-304F8145F34F",
              "versionEndExcluding": "26.6"
            },
            {
              "criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "622D61A7-C893-4550-800A-8CEDE14F3033",
              "versionEndExcluding": "26.6"
            },
            {
              "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8D3D83F1-07DF-47C2-9F3B-0BC5A1434606",
              "versionEndExcluding": "26.6",
              "versionStartIncluding": "26.0"
            },
            {
              "criteria": "cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D461E49C-A6FA-4AFD-B557-FB066243A708",
              "versionEndExcluding": "26.6"
            },
            {
              "criteria": "cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "927CD91A-3CC7-42CE-BD20-CD6D7C9B4984",
              "versionEndExcluding": "26.6"
            },
            {
              "criteria": "cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BDA04143-9B99-429E-8970-B13AB5DBCDDC",
              "versionEndExcluding": "26.6"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "product-security@apple.com"
}