CVE-2026-20633

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{"affected": [{"affectedData": [{"product": "macOS", "vendor": "Apple", "versions": [{"lessThan": "14.8.5", "status": "affected", "version": "0", "versionType": "custom"}, {"lessThan": "15.7.5", "status": "affected", "version": "0", "versionType": "custom"}, {"lessThan": "26.4", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "product-security@apple.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "matchCriteriaId": "D66288AF-23BD-407A-81F5-F1DFBF84C622", "versionEndExcluding": "14.8.5", "versionStartIncluding": "14.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "matchCriteriaId": "DD21D2C9-BBEC-4E8E-B8D2-C92B7E6155E1", "versionEndExcluding": "15.7.5", "versionStartIncluding": "15.0", "vulnerable": true}, {"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": "This issue was addressed with improved handling of symlinks. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. An app may be able to access user-sensitive data."}, {"lang": "es", "value": "Este problema se abord\u00f3 con un manejo mejorado de enlaces simb\u00f3licos. Este problema se corrigi\u00f3 en macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. Una app podr\u00eda acceder a datos sensibles del usuario."}], "id": "CVE-2026-20633", "lastModified": "2026-06-17T10:17:34.547", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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-2026-20633", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-25T16:02:13.739507Z", "version": "2.0.3"}}]}, "published": "2026-03-25T01:17:04.210", "references": [{"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/126795"}, {"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/126796"}], "sourceIdentifier": "product-security@apple.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-59"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,14.8.5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,15.7.5)"}}, {"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": "2026-03-25T21:56:29.701555+00:00", "value": {"mitigation_remediation": ["Upgrade macOS to at least macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, or macOS Tahoe 26.4, which contain the fix for this symlink handling issue.", "Verify that your system is running one of the patched versions by checking the OS version in System Settings.", "If upgrading immediately is not possible, restrict third\u2011party applications' access to sensitive directories using built\u2011in file\u2011system permissions or sandboxing features."], "summary": {"action": "Apply update", "impact": "Sensitive Data Exposure"}, "threat_synthesis": {"affected_systems": "Apple's macOS operating system is affected. Versions of macOS prior to the security update\u2014specifically before macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, and macOS Tahoe 26.4\u2014are vulnerable. The issue applies broadly to the standard macOS installation and any third\u2011party applications that rely on the system's symbolic link handling.", "description_and_impact": "An application on macOS can exploit improper handling of symbolic links to read files that it should not normally access, potentially exposing user\u2011sensitive data. The weakness stems from incorrect path resolution, categorized as a path traversal vulnerability (CWE\u201159). If an attacker can direct the application to follow a crafted symlink, the app may retrieve confidential information that resides outside its intended directory.", "risk_and_exploitability": "The CVSS score of 5.5 indicates moderate severity. The EPSS score of less than 1% suggests a low likelihood of widespread exploitation, and the vulnerability is not listed in the CISA KEV catalog. The likely attack vector is local; an attacker with the ability to install or run an application on the victim's machine could craft symlinks to access protected files. No public exploit has been identified, but the moderate score means that applying the available update is prudent."}}}}, "created": "2026-03-25T11:35:54.578168+00:00", "title": "Symlink Handling Issue Allowing Access to Sensitive Data on macOS", "updated": "2026-03-26T12:17:42.809830+00:00", "vendors": ["apple", "apple$PRODUCT$macos"]}