FKIE_CVE-2026-20691
Vulnerability from fkie_nvd - Published: 2026-03-25 01:17 - Updated: 2026-06-17 10:17
Severity
Summary
An authorization issue was addressed with improved state management. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4, watchOS 26.4. A maliciously crafted webpage may be able to fingerprint the user.
References
| URL | Tags | ||
|---|---|---|---|
| product-security@apple.com | https://support.apple.com/en-us/126792 | Release Notes, Vendor Advisory | |
| product-security@apple.com | https://support.apple.com/en-us/126794 | Release Notes, Vendor Advisory | |
| product-security@apple.com | https://support.apple.com/en-us/126798 | Release Notes, Vendor Advisory | |
| product-security@apple.com | https://support.apple.com/en-us/126799 | Release Notes, Vendor Advisory | |
| product-security@apple.com | https://support.apple.com/en-us/126800 | Release Notes, Vendor Advisory |
{
"affected": [
{
"affectedData": [
{
"product": "Safari",
"vendor": "Apple",
"versions": [
{
"lessThan": "26.4",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"product": "iOS and iPadOS",
"vendor": "Apple",
"versions": [
{
"lessThan": "26.4",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"product": "macOS",
"vendor": "Apple",
"versions": [
{
"lessThan": "26.4",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"product": "visionOS",
"vendor": "Apple",
"versions": [
{
"lessThan": "26.4",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"product": "watchOS",
"vendor": "Apple",
"versions": [
{
"lessThan": "26.4",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"source": "product-security@apple.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*",
"matchCriteriaId": "993386B4-0570-414F-B4A6-3E65F5704903",
"versionEndExcluding": "26.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*",
"matchCriteriaId": "F813DB63-2B55-4E0B-9073-5465C65F69D6",
"versionEndExcluding": "26.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*",
"matchCriteriaId": "01612D13-BE5B-43F8-B53E-5BF57F2A5B0C",
"versionEndExcluding": "26.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*",
"matchCriteriaId": "6CF848CD-25D4-4371-BEF3-1ACCE47AD81F",
"versionEndExcluding": "26.4",
"versionStartIncluding": "26.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*",
"matchCriteriaId": "113B9705-BFF0-4357-B1AB-F57052F32361",
"versionEndExcluding": "26.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*",
"matchCriteriaId": "F6EAF0A5-7CFF-4EF6-9BC7-DB25B213F753",
"versionEndExcluding": "26.4",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "An authorization issue was addressed with improved state management. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4, watchOS 26.4. A maliciously crafted webpage may be able to fingerprint the user."
},
{
"lang": "es",
"value": "Se abord\u00f3 un problema de autorizaci\u00f3n con una gesti\u00f3n de estado mejorada. Este problema est\u00e1 solucionado en Safari 26.4, iOS 26.4 y iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4, watchOS 26.4. Una p\u00e1gina web creada con fines maliciosos podr\u00eda ser capaz de identificar al usuario mediante huella digital."
}
],
"id": "CVE-2026-20691",
"lastModified": "2026-06-17T10:17:42.163",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 1.4,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-20691",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-25T15:08:58.557849Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-03-25T01:17:05.910",
"references": [
{
"source": "product-security@apple.com",
"tags": [
"Release Notes",
"Vendor Advisory"
],
"url": "https://support.apple.com/en-us/126792"
},
{
"source": "product-security@apple.com",
"tags": [
"Release Notes",
"Vendor Advisory"
],
"url": "https://support.apple.com/en-us/126794"
},
{
"source": "product-security@apple.com",
"tags": [
"Release Notes",
"Vendor Advisory"
],
"url": "https://support.apple.com/en-us/126798"
},
{
"source": "product-security@apple.com",
"tags": [
"Release Notes",
"Vendor Advisory"
],
"url": "https://support.apple.com/en-us/126799"
},
{
"source": "product-security@apple.com",
"tags": [
"Release Notes",
"Vendor Advisory"
],
"url": "https://support.apple.com/en-us/126800"
}
],
"sourceIdentifier": "product-security@apple.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-497"
}
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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