Sensitive user data disclosure to local applications
Published Sep 14, 2026 · Updated Sep 14, 2026
Privacy weakness in Mail in Apple macOS before 15.8, 26.7, and 27 allows local users to access sensitive user data through an app. Apple identifies only improved checks and does not disclose which Mail operation handles the data incorrectly or how its checks fail. Reachability requires an application executing in a local user context, and the reported consequence is limited to sensitive-data disclosure.
Summary
What happened
Privacy weakness in Mail in Apple macOS before 15.8, 26.7, and 27 allows local users to access sensitive user data through an app. Apple identifies only improved checks and does not disclose which Mail operation handles the data incorrectly or how its checks fail. Reachability requires an application executing in a local user context, and the reported consequence is limited to sensitive-data disclosure.
The record
- CVE
- CVE-2026-84573
- Published
- Sep 14, 2026
- Updated
- Sep 14, 2026
- Vendor
- Apple
- Product
- macOS
- Classifications
- Unavailable
- Attack vector
- local
- Privileges
- Unavailable
Timeline
How it unfolded
- Sep 14, 2026CVE publishedPublication date reported by the CVE source.
- Sep 14, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <15.8
- Affected versionversion=0 <26.7
- Affected versionversion=0 <27
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
No sourced classifications are available.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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