FKIE_CVE-2026-20643

Vulnerability from fkie_nvd - Published: 2026-03-17 23:16 - Updated: 2026-03-25 01:17
Severity ?
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Summary
A cross-origin issue in the Navigation API was addressed with improved input validation. This issue is fixed in Background Security Improvements for iOS, iPadOS, and macOS, Safari 26.4, iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. Processing maliciously crafted web content may bypass Same Origin Policy.
References
product-security@apple.comhttps://support.apple.com/en-us/126604Release Notes, Vendor Advisory
product-security@apple.comhttps://support.apple.com/en-us/126792
product-security@apple.comhttps://support.apple.com/en-us/126793
product-security@apple.comhttps://support.apple.com/en-us/126794
product-security@apple.comhttps://support.apple.com/en-us/126799
product-security@apple.comhttps://support.apple.com/en-us/126800
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2026/Mar/10
Impacted products
Vendor Product Version
apple ipados *
apple iphone_os *
apple macos *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "A9117B15-6B46-4C64-BC4A-DDF9D9FBBEB5",
              "versionEndExcluding": "26.3.1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "60C61D06-6323-4C2E-96BC-F05F0C459568",
              "versionEndExcluding": "26.3.1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "68370079-081F-40B1-A93F-F2B042B813E4",
              "versionEndExcluding": "26.3.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A cross-origin issue in the Navigation API was addressed with improved input validation. This issue is fixed in Background Security Improvements for iOS, iPadOS, and macOS, Safari 26.4, iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. Processing maliciously crafted web content may bypass Same Origin Policy."
    },
    {
      "lang": "es",
      "value": "Se abord\u00f3 un problema de origen cruzado en la API de Navegaci\u00f3n con una validaci\u00f3n de entrada mejorada. Este problema se solucion\u00f3 en las Mejoras de Seguridad en Segundo Plano para iOS 26.3.1, iPadOS 26.3.1, macOS 26.3.1 y macOS 26.3.2. El procesamiento de contenido web creado con fines maliciosos podr\u00eda eludir la Pol\u00edtica del Mismo Origen."
    }
  ],
  "id": "CVE-2026-20643",
  "lastModified": "2026-03-25T01:17:04.543",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.5,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-03-17T23:16:17.193",
  "references": [
    {
      "source": "product-security@apple.com",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "url": "https://support.apple.com/en-us/126604"
    },
    {
      "source": "product-security@apple.com",
      "url": "https://support.apple.com/en-us/126792"
    },
    {
      "source": "product-security@apple.com",
      "url": "https://support.apple.com/en-us/126793"
    },
    {
      "source": "product-security@apple.com",
      "url": "https://support.apple.com/en-us/126794"
    },
    {
      "source": "product-security@apple.com",
      "url": "https://support.apple.com/en-us/126799"
    },
    {
      "source": "product-security@apple.com",
      "url": "https://support.apple.com/en-us/126800"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://seclists.org/fulldisclosure/2026/Mar/10"
    }
  ],
  "sourceIdentifier": "product-security@apple.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        },
        {
          "lang": "en",
          "value": "CWE-346"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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