CVE-2026-39871: An app may be able to observe unprotected user data in Apple macOS
CVE-2026-39871 is a vulnerability in Apple macOS where a path handling issue could allow an app to observe unprotected user data. The issue has been addressed with improved logic and fixed in macOS Sequoia 15. 7. 7, macOS Sonoma 14. 8. 7, and macOS Tahoe 26. 5. There are no known exploits in the wild at this time. No CVSS score is available for this vulnerability.
AI Analysis
Technical Summary
This vulnerability involves a path handling flaw in Apple macOS that could permit an application to access unprotected user data. Apple has fixed the issue by improving the path handling logic in specific macOS versions: Sequoia 15.7.7, Sonoma 14.8.7, and Tahoe 26.5. The vulnerability was publicly disclosed on May 11, 2026, and no known exploitation has been reported. The patch status is confirmed by the vendor's fixed versions, but no explicit remediation level or advisory text is provided in the source data.
Potential Impact
An attacker controlling or running a malicious app on affected macOS versions prior to the fixed releases could potentially observe user data that should be protected. This could lead to unauthorized data exposure. However, there are no reports of active exploitation in the wild.
Mitigation Recommendations
Apply the official updates to macOS Sequoia 15.7.7, Sonoma 14.8.7, or Tahoe 26.5 to remediate this vulnerability. Since the vendor has released fixed versions, updating to these versions or later is the recommended mitigation. Patch status is confirmed by the vendor's fixed releases. No additional mitigation guidance is provided.
CVE-2026-39871: An app may be able to observe unprotected user data in Apple macOS
Description
CVE-2026-39871 is a vulnerability in Apple macOS where a path handling issue could allow an app to observe unprotected user data. The issue has been addressed with improved logic and fixed in macOS Sequoia 15. 7. 7, macOS Sonoma 14. 8. 7, and macOS Tahoe 26. 5. There are no known exploits in the wild at this time. No CVSS score is available for this vulnerability.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a path handling flaw in Apple macOS that could permit an application to access unprotected user data. Apple has fixed the issue by improving the path handling logic in specific macOS versions: Sequoia 15.7.7, Sonoma 14.8.7, and Tahoe 26.5. The vulnerability was publicly disclosed on May 11, 2026, and no known exploitation has been reported. The patch status is confirmed by the vendor's fixed versions, but no explicit remediation level or advisory text is provided in the source data.
Potential Impact
An attacker controlling or running a malicious app on affected macOS versions prior to the fixed releases could potentially observe user data that should be protected. This could lead to unauthorized data exposure. However, there are no reports of active exploitation in the wild.
Mitigation Recommendations
Apply the official updates to macOS Sequoia 15.7.7, Sonoma 14.8.7, or Tahoe 26.5 to remediate this vulnerability. Since the vendor has released fixed versions, updating to these versions or later is the recommended mitigation. Patch status is confirmed by the vendor's fixed releases. No additional mitigation guidance is provided.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-04-07T19:58:20.173Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a028763cbff5d86108b682d
Added to database: 5/12/2026, 1:50:27 AM
Last enriched: 5/12/2026, 2:06:02 AM
Last updated: 5/12/2026, 3:50:14 AM
Views: 2
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