CVE-2026-86907
Medium
Description
An authorization issue was addressed with improved entitlement checks. This issue is fixed in macOS Sequoia 15.8, macOS Tahoe 26.7. An app with admin privileges may be able to modify the System Keychain.
SeverityMedium
CVSS4.4
Exploit probability—
Product
Apple Macos
PublishedOct 20, 2026
First seenOct 20, 2026
Weakness typeCWE-862Missing authorization
How to fix
Update
- apple macos15.8, 26.7 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apple macos | v < 15.8, 26.0 ≤ v < 26.7 | 15.8, 26.7 |
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