{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-20684", "assignerOrgId": "286789f9-fbc2-4510-9f9a-43facdede74c", "state": "PUBLISHED", "assignerShortName": "apple", "dateReserved": "2025-11-11T14:43:07.873Z", "datePublished": "2026-03-25T00:31:32.329Z", "dateUpdated": "2026-03-25T15:17:08.600Z"}, "containers": {"cna": {"problemTypes": [{"descriptions": [{"lang": "en", "description": "An app may bypass Gatekeeper checks"}]}], "affected": [{"vendor": "Apple", "product": "macOS", "versions": [{"version": "0", "status": "affected", "lessThan": "26.4", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "A permissions issue was addressed with additional restrictions. This issue is fixed in macOS Tahoe 26.4. An app may bypass Gatekeeper checks."}], "references": [{"url": "https://support.apple.com/en-us/126794"}], "providerMetadata": {"orgId": "286789f9-fbc2-4510-9f9a-43facdede74c", "shortName": "apple", "dateUpdated": "2026-03-25T00:31:32.329Z"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 3.3, "attackVector": "LOCAL", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-03-25T15:16:46.370992Z", "id": "CVE-2026-20684", "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": "2026-03-25T15:17:08.600Z"}}]}}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "matchCriteriaId": "6CF848CD-25D4-4371-BEF3-1ACCE47AD81F", "versionEndExcluding": "26.4", "versionStartIncluding": "26.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A permissions issue was addressed with additional restrictions. This issue is fixed in macOS Tahoe 26.4. An app may bypass Gatekeeper checks."}], "id": "CVE-2026-20684", "lastModified": "2026-03-25T20:53:21.823", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 3.3, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 1.4, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2026-03-25T01:17:05.387", "references": [{"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/126794"}], "sourceIdentifier": "product-security@apple.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,26.4)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "macOS", "source": "cna", "vendor": "Apple"}, "product": "macos", "vendor": "apple"}], "analysis": {"en": {"generated_at": "2026-03-26T16:05:08.345172+00:00", "value": {"mitigation_remediation": ["Upgrade macOS to version\u202f26.4 or newer, which applies the necessary permissions restrictions", "Enable Gatekeeper in the Security & Privacy pane to enforce application validation", "Verify that no unauthorized applications have been granted elevated permissions after the update", "Review system logs for unexpected or unsigned application launches to detect potential bypass attempts"], "summary": {"action": "Apply patch", "impact": "Execution of unsigned applications"}, "threat_synthesis": {"affected_systems": "The vulnerability affects Apple macOS systems running versions prior to macOS Tahoe\u202f26.4. The security restriction that prevents the bypass was introduced in the 26.4 release, so any earlier installation remains vulnerable.", "description_and_impact": "An improper permissions configuration in macOS allows an application to bypass Gatekeeper checks and run unsigned code. This flaw permits a malicious or unsigned application to be installed and executed without the normal security validation that Gatekeeper performs, potentially exposing the system to unauthorized code execution as described by CWE\u2011284 and CWE\u2011732.", "risk_and_exploitability": "The CVSS score of 3.3 classifies the weakness as low severity, and the EPSS score of under 1% indicates a low likelihood of exploitation. It is not listed in the CISA KEV catalog, which suggests limited active exploitation. The attack vector is not explicitly documented, but based on the nature of a permissions issue, it is inferred to be a local attack that requires a user with the ability to install or run applications on the affected macOS machine."}}}}, "created": "2026-03-25T11:37:09.379731+00:00", "updated": "2026-03-27T09:20:24.632238+00:00", "vendors": ["apple", "apple$PRODUCT$macos"]}