CVE-2026-84580 Apple macOS - Sandbox Escape

Apple macOS Golden Gate 27, Sequoia 15.8, and Tahoe 26.7 contain a sandbox escape vulnerability caused by insufficient sandbox checks, letting applications break out of their sandbox, exploit requires app execution.

CVSS base score 8.4 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.15% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Sandbox Escape
Impact
Privilege Escalation
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Published
14 September 2026
Updated
15 October 2026
Weakness
CWE-862

Vendor fix

Update to macOS Golden Gate 27, Sequoia 15.8, Tahoe 26.7 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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