{
  "cvss": 7.5,
  "datePublished": "2026-05-11T21:19:01.720",
  "dateUpdated": "2026-10-26T18:10:00.173",
  "description": "A validation issue was addressed with improved logic. This issue is fixed in Safari 26.5, iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may prevent Content Security Policy from being enforced.",
  "id": "CVE-2026-43660",
  "raw": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "Safari",
            "vendor": "Apple",
            "versions": [
              {
                "lessThan": "26.5",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "product": "iOS and iPadOS",
            "vendor": "Apple",
            "versions": [
              {
                "lessThan": "18.7.9",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              },
              {
                "lessThan": "26.5",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "product": "macOS",
            "vendor": "Apple",
            "versions": [
              {
                "lessThan": "26.5",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "product": "tvOS",
            "vendor": "Apple",
            "versions": [
              {
                "lessThan": "26.5",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "product": "visionOS",
            "vendor": "Apple",
            "versions": [
              {
                "lessThan": "26.5",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "product": "watchOS",
            "vendor": "Apple",
            "versions": [
              {
                "lessThan": "26.5",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "source": "product-security@apple.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "F3968B76-E6DE-416D-A0FB-E4833FFAAE0F",
                "versionEndExcluding": "18.7.9",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "20644D7E-2AB6-48CA-AED4-C474A9867986",
                "versionEndExcluding": "26.5",
                "versionStartIncluding": "26.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "B6431EAF-B395-4C19-9AB6-A2F45991C897",
                "versionEndExcluding": "18.7.9",
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                "matchCriteriaId": "1BE54A3B-D667-43BA-AB71-BCF8438054E0",
                "versionEndExcluding": "26.5",
                "versionStartIncluding": "26.0",
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              },
              {
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                "matchCriteriaId": "6CB91417-90A8-4A9B-A1D0-1D94B80EF837",
                "versionEndExcluding": "26.5",
                "versionStartIncluding": "26.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "176C47FD-FA25-437B-9061-A81CAA367AEF",
                "versionEndExcluding": "26.5",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "C8F45D80-0DF8-444E-9AF1-703A1075F046",
                "versionEndExcluding": "26.5",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "057B244F-5485-4108-8E23-FE15F5256EE7",
                "versionEndExcluding": "26.5",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "A validation issue was addressed with improved logic. This issue is fixed in Safari 26.5, iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may prevent Content Security Policy from being enforced."
      },
      {
        "lang": "es",
        "value": "Se abordó un problema de validación con lógica mejorada. Este problema se solucionó en iOS 18.7.9 y iPadOS 18.7.9, iOS 26.5 y iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. El procesamiento de contenido web creado con fines maliciosos puede impedir que se aplique la Política de Seguridad de Contenido."
      }
    ],
    "id": "CVE-2026-43660",
    "lastModified": "2026-10-26T18:10:00.173",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6,
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-43660",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-05-12T13:18:46.236433Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-05-11T21:19:01.720",
    "references": [
      {
        "source": "product-security@apple.com",
        "tags": [
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://support.apple.com/en-us/127110"
      },
      {
        "source": "product-security@apple.com",
        "tags": [
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://support.apple.com/en-us/127111"
      },
      {
        "source": "product-security@apple.com",
        "tags": [
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://support.apple.com/en-us/127115"
      },
      {
        "source": "product-security@apple.com",
        "tags": [
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://support.apple.com/en-us/127118"
      },
      {
        "source": "product-security@apple.com",
        "tags": [
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://support.apple.com/en-us/127119"
      },
      {
        "source": "product-security@apple.com",
        "tags": [
          "Release Notes",
          "Vendor Advisory"
        ],
        "url": "https://support.apple.com/en-us/127120"
      },
      {
        "source": "product-security@apple.com",
        "url": "https://support.apple.com/en-us/127121"
      }
    ],
    "sourceIdentifier": "product-security@apple.com",
    "vulnStatus": "Modified",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-693"
          }
        ],
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "severity": "HIGH",
  "source": "nvd",
  "title": "A validation issue was addressed with improved logic"
}