cve-2026-43660

HIGH CVSS 7.5 nvd

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.

Timeline

Published: 2026-05-11
Last Modified: 2026-10-26

CVSS Details

Attack Vector: NETWORK
Attack Complexity: LOW
Privileges Required: NONE

Affected Products

apple ipados
apple iphone_os
apple macos
apple tvos
apple visionos
apple watchos

Weaknesses (CWE)

CWE-693

CVSS metrics

Version	Base	Severity	Vector	Exploitability	Impact	Source
3.1	7.5	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`	3.9	3.6	134c704f-9b21-4f2e-91b3-4a467353bcc0

CPE configurations

CPE	Version range	Vulnerable
`cpe:2.3:o:apple:ipados::::::::`	< 18.7.9	yes
`cpe:2.3:o:apple:ipados::::::::`	>= 26.0, < 26.5	yes
`cpe:2.3:o:apple:iphone_os::::::::`	< 18.7.9	yes
`cpe:2.3:o:apple:iphone_os::::::::`	>= 26.0, < 26.5	yes
`cpe:2.3:o:apple:macos::::::::`	>= 26.0, < 26.5	yes
`cpe:2.3:o:apple:tvos::::::::`	< 26.5	yes
`cpe:2.3:o:apple:visionos::::::::`	< 26.5	yes
`cpe:2.3:o:apple:watchos::::::::`	< 26.5	yes

NVD metadata

NVD status: Modified
Source identifier: product-security@apple.com

References

https://support.apple.com/en-us/127110 Release Notes, Vendor Advisory
https://support.apple.com/en-us/127111 Release Notes, Vendor Advisory
https://support.apple.com/en-us/127115 Release Notes, Vendor Advisory
https://support.apple.com/en-us/127118 Release Notes, Vendor Advisory
https://support.apple.com/en-us/127119 Release Notes, Vendor Advisory
https://support.apple.com/en-us/127120 Release Notes, Vendor Advisory
https://support.apple.com/en-us/127121

Linked Vulnerabilities

cpuoct2026csaf csaf_oracle

elsa-2026-25918 oracle_linux

elsa-2026-25927 oracle_linux

alas2-2026-3381 amazon_linux

{
  "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": [
              {
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                "status": "affected",
                "version": "0",
                "versionType": "custom"
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          },
          {
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            "vendor": "Apple",
            "versions": [
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                "status": "affected",
                "version": "0",
                "versionType": "custom"
              },
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                "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",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "1BE54A3B-D667-43BA-AB71-BCF8438054E0",
                "versionEndExcluding": "26.5",
                "versionStartIncluding": "26.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*",
                "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"
}

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cve-2026-43660

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