Vulnerability-Lookup

CERTFR-2026-AVI-0313

Vulnerability from certfr_avis - Published: 2026-03-18 - Updated: 2026-03-18

Une vulnérabilité a été découverte dans les produits Apple. Elle permet à un attaquant de provoquer un contournement de la politique de sécurité.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products

Vendor	Product	Description
Apple	iPadOS	iPadOS versions antérieures à 26.3.1 (a)
Apple	macOS	macOS versions antérieures à 26.3.1 (a)
Apple	macOS	macOS versions antérieures à 26.3.2 (a)
Apple	iOS	iOS versions antérieures à 26.3.1 (a)

References

Title

Publication Time

Tags

Bulletin de sécurité Apple 126604

2026-03-17

vendor-advisory

Show details on source website

JSON

To clipboard

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "iPadOS versions ant\u00e9rieures \u00e0 26.3.1 (a)",
      "product": {
        "name": "iPadOS",
        "vendor": {
          "name": "Apple",
          "scada": false
        }
      }
    },
    {
      "description": "macOS versions ant\u00e9rieures \u00e0 26.3.1 (a)",
      "product": {
        "name": "macOS",
        "vendor": {
          "name": "Apple",
          "scada": false
        }
      }
    },
    {
      "description": "macOS versions ant\u00e9rieures \u00e0 26.3.2 (a)",
      "product": {
        "name": "macOS",
        "vendor": {
          "name": "Apple",
          "scada": false
        }
      }
    },
    {
      "description": "iOS versions ant\u00e9rieures \u00e0 26.3.1 (a)",
      "product": {
        "name": "iOS",
        "vendor": {
          "name": "Apple",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": "",
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [
    {
      "name": "CVE-2026-20643",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-20643"
    }
  ],
  "initial_release_date": "2026-03-18T00:00:00",
  "last_revision_date": "2026-03-18T00:00:00",
  "links": [],
  "reference": "CERTFR-2026-AVI-0313",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2026-03-18T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Contournement de la politique de s\u00e9curit\u00e9"
    }
  ],
  "summary": "Une vuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 d\u00e9couverte dans les produits Apple. Elle permet \u00e0 un attaquant de provoquer un contournement de la politique de s\u00e9curit\u00e9.",
  "title": "Vuln\u00e9rabilit\u00e9 dans les produits Apple",
  "vendor_advisories": [
    {
      "published_at": "2026-03-17",
      "title": "Bulletin de s\u00e9curit\u00e9 Apple 126604",
      "url": "https://support.apple.com/en-us/126604"
    }
  ]
}

CVE-2026-20643 (GCVE-0-2026-20643)

Vulnerability from cvelistv5 – Published: 2026-03-17 22:29 – Updated: 2026-04-02 18:19

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.

Severity ?

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

CWE

Processing maliciously crafted web content may bypass Same Origin Policy

Assigner

apple

References

URL

Tags

	https://support.apple.com/en-us/126604
	https://support.apple.com/en-us/126792
	https://support.apple.com/en-us/126793
	https://support.apple.com/en-us/126794
	https://support.apple.com/en-us/126799
	https://support.apple.com/en-us/126800

Impacted products

Vendor

Product

Version

Apple

Safari

Affected: 0 , < 26.4 (custom)

Apple	iOS and iPadOS	Affected: 0 , < 18.7.7 (custom) Affected: 0 , < 26.3.1 (a) (custom) Affected: 0 , < 26.4 (custom)
Apple	macOS	Affected: 0 , < 26.3.1 (a) (custom) Affected: 0 , < 26.3.2 (a) (custom) Affected: 0 , < 26.4 (custom)
Apple	visionOS	Affected: 0 , < 26.4 (custom)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "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"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-20643",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-18T13:14:53.546083Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-20",
                "description": "CWE-20 Improper Input Validation",
                "lang": "en",
                "type": "CWE"
              }
            ]
          },
          {
            "descriptions": [
              {
                "cweId": "CWE-346",
                "description": "CWE-346 Origin Validation Error",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-18T13:14:56.139Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2026-03-19T16:18:46.731Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://seclists.org/fulldisclosure/2026/Mar/10"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Safari",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "26.4",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "iOS and iPadOS",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "18.7.7",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "lessThan": "26.3.1 (a)",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "lessThan": "26.4",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "macOS",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "26.3.1 (a)",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "lessThan": "26.3.2 (a)",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "lessThan": "26.4",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "visionOS",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "26.4",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "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."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Processing maliciously crafted web content may bypass Same Origin Policy",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-02T18:19:47.831Z",
        "orgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
        "shortName": "apple"
      },
      "references": [
        {
          "url": "https://support.apple.com/en-us/126604"
        },
        {
          "url": "https://support.apple.com/en-us/126792"
        },
        {
          "url": "https://support.apple.com/en-us/126793"
        },
        {
          "url": "https://support.apple.com/en-us/126794"
        },
        {
          "url": "https://support.apple.com/en-us/126799"
        },
        {
          "url": "https://support.apple.com/en-us/126800"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
    "assignerShortName": "apple",
    "cveId": "CVE-2026-20643",
    "datePublished": "2026-03-17T22:29:48.227Z",
    "dateReserved": "2025-11-11T14:43:07.862Z",
    "dateUpdated": "2026-04-02T18:19:47.831Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CERTFR-2026-AVI-0313

Solutions

CVE-2026-20643 (GCVE-0-2026-20643)

Tags

Sightings

Nomenclature