CVE intelligence

CVE-2026-86907

Vulnerability intelligence

Published Oct 20, 2026Sources checked Nov 12, 2026

4.4MEDIUMCVSS out of 10

What this means

Review the available evidence

CVE-2026-86907 and is rated Medium severity with a CVSS score of 4.4. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

CISA KEVNot listedBased on the latest collected catalog

EPSS0.1%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-86907?

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.

Source: NVD