Authorization Issue in macOS Products by Apple
CVE-2026-86907

4.4MEDIUM

Key Information:

Vendor

Apple
Status
Mac OS
Vendor
CVE Published:
20 October 2026

What is CVE-2026-86907?

An authorization vulnerability exists in certain macOS versions that could allow an application with admin privileges to modify entries in the System Keychain. This issue has been mitigated through enhanced entitlement checks in macOS Sequoia 15.8 and macOS Tahoe 26.7. Users are advised to update their systems to these versions to ensure their data remains secure.

Affected Version(s)

macOS 0 < 15.8

macOS 0 < 26.7

References

https://support.apple.com/en-us/149042
https://support.apple.com/en-us/149043

CVSS V3.1

Score:
4.4
Severity:
MEDIUM
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.