CVE-2026-86907 Details
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.
A vulnerability exists in macOS Sequoia and macOS Tahoe that allows applications with administrative privileges to alter the System Keychain. This issue arises from inadequate entitlement checks, which have been addressed in the latest macOS updates.
Users can update to macOS Sequoia 15.8 or macOS Tahoe 26.7 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Oct 20, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://support.apple.com/en-us/149042 | [email protected] | Vendor AdvisoryRelease Notes |
| https://support.apple.com/en-us/149043 | [email protected] | Vendor AdvisoryRelease Notes |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-862 | Missing Authorization | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| apple macos | < 15.8 >= 26.0, < 26.7 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 3, 2026 | Initial Analysis | [email protected] |
| Oct 20, 2026 | CVE Modified | CISA-ADP |
| Oct 20, 2026 | New CVE Received | [email protected] |