CVE-2019-8656: Apple Mac OS X

Medium severity, CVSS 5.5. EPSS: 1.5% chance of exploitation in the next 30 days.

This was addressed with additional checks by Gatekeeper on files mounted through a network share. This issue is fixed in macOS Mojave 10.14.6, Security Update 2019-004 High Sierra, Security Update 2019-004 Sierra. Extracting a zip file containing a symbolic link to an endpoint in an NFS mount that is attacker controlled may bypass Gatekeeper.

Affected products

• Apple Mac OS X: before 10.14.6 (fixed in 10.14.6)

Published 2020-10-27. Last modified 2026-06-17.