macOS CVE-2026-20618
MEDIUMCVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Lifecycle Timeline
2DescriptionNVD
An issue was addressed with improved handling of temporary files. This issue is fixed in macOS Tahoe 26.3. An app may be able to access user-sensitive data.
AnalysisAI
macOS Tahoe versions prior to 26.3 contain an improper temporary file handling vulnerability that allows local authenticated applications to read sensitive user data. The vulnerability requires local access and valid user privileges but poses no risk to system integrity or availability. …
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RemediationAI
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.
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External POC / Exploit Code
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