CVE-2026-20666

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-20666", "assignerOrgId": "286789f9-fbc2-4510-9f9a-43facdede74c", "state": "PUBLISHED", "assignerShortName": "apple", "dateReserved": "2025-11-11T14:43:07.866Z", "datePublished": "2026-02-11T22:58:08.903Z", "dateUpdated": "2026-04-02T18:10:17.415Z"}, "containers": {"cna": {"problemTypes": [{"descriptions": [{"lang": "en", "description": "An app may be able to access sensitive user data"}]}], "affected": [{"vendor": "Apple", "product": "macOS", "versions": [{"version": "0", "status": "affected", "lessThan": "26.3", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "An authorization issue was addressed with improved state management. This issue is fixed in macOS Tahoe 26.3. An app may be able to access sensitive user data."}], "references": [{"url": "https://support.apple.com/en-us/126348"}], "providerMetadata": {"orgId": "286789f9-fbc2-4510-9f9a-43facdede74c", "shortName": "apple", "dateUpdated": "2026-04-02T18:10:17.415Z"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-285", "lang": "en", "description": "CWE-285 Improper Authorization"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-02-12T16:56:53.422623Z", "id": "CVE-2026-20666", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-02-12T16:56:56.899Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"cna": {"affected": [{"vendor": "Apple", "product": "macOS", "versions": [{"status": "affected", "version": "unspecified", "lessThan": "26.3", "versionType": "custom"}]}], "references": [{"url": "https://support.apple.com/en-us/126348"}], "descriptions": [{"lang": "en", "value": "An authorization issue was addressed with improved state management. This issue is fixed in macOS Tahoe 26.3. An app may be able to access sensitive user data."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "An app may be able to access sensitive user data"}]}], "providerMetadata": {"orgId": "286789f9-fbc2-4510-9f9a-43facdede74c", "shortName": "apple", "dateUpdated": "2026-02-11T22:58:08.903Z"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-20666", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-02-12T16:56:53.422623Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-285", "description": "CWE-285 Improper Authorization"}]}], "providerMetadata": {"shortName": "CISA-ADP", "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "dateUpdated": "2026-02-12T16:56:47.689Z"}}]}, "cveMetadata": {"cveId": "CVE-2026-20666", "state": "PUBLISHED", "dateUpdated": "2026-02-11T22:58:08.903Z", "dateReserved": "2025-11-11T14:43:07.866Z", "assignerOrgId": "286789f9-fbc2-4510-9f9a-43facdede74c", "datePublished": "2026-02-11T22:58:08.903Z", "assignerShortName": "apple"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "macOS", "vendor": "Apple", "versions": [{"lessThan": "26.3", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "product-security@apple.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "matchCriteriaId": "E1EEEE88-5ADA-4C55-9C7C-397E904408DD", "versionEndExcluding": "26.3", "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 macOS Tahoe 26.3. An app may be able to access sensitive user data."}, {"lang": "es", "value": "Se abord\u00f3 un problema de autorizaci\u00f3n con una gesti\u00f3n de estado mejorada. Este problema est\u00e1 solucionado en macOS Tahoe 26.3. Una aplicaci\u00f3n podr\u00eda acceder a datos de usuario sensibles."}], "id": "CVE-2026-20666", "lastModified": "2026-06-17T10:17:39.217", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-20666", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-02-12T16:56:53.422623Z", "version": "2.0.3"}}]}, "published": "2026-02-11T23:16:09.020", "references": [{"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/126348"}], "sourceIdentifier": "product-security@apple.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-285"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,26.3)"}}], "product": "macos", "vendor": "apple"}], "analysis": {"en": {"generated_at": "2026-04-16T00:59:42.889704+00:00", "value": {"mitigation_remediation": ["Apply the macOS 26.3 update or newer to resolve the state\u2011management flaw.", "Restart the computer to fully activate the updated security controls.", "Check System Settings\u00a0> Privacy & Security and revoke any unnecessary application permissions that may expose sensitive data."], "summary": {"action": "Patch", "impact": "Unauthorized access to sensitive user data"}, "threat_synthesis": {"affected_systems": "Apple\u2019s macOS Tahoe platform is affected when running versions prior to the 26.3 update, which contains the fix for the state\u2011management issue. Users on earlier releases of macOS Tahoe therefore remain vulnerable.\n", "description_and_impact": "An authorization flaw due to improper state management allows a local application to gain unauthorized access to sensitive user data. The vulnerability, classified as privilege escalation, can lead to confidentiality breaches by enabling apps to read or modify data that should be restricted to the user.\n", "risk_and_exploitability": "The vulnerability carries a moderate CVSS score of 5.5 and an EPSS score below 1\u202f%, indicating a low probability of exploitation. It is not listed in the CISA Known Exploited Vulnerabilities catalog. It is inferred that the most likely attack vector is local; based on the description, an application running with user privileges could exploit the weakened state controls to reach protected data. Because the flaw does not lead to remote code execution or system compromise, the overall risk is low but the impact on user privacy warrants remediation.\n"}}}}, "created": "2026-02-12T09:03:01.255785+00:00", "title": "macOS Authorization Flaw Enabling Apps to Read Sensitive Data", "updated": "2026-04-16T01:00:19.966162+00:00", "vendors": ["apple", "apple$PRODUCT$macos"]}