6.2 Medium

CVE-2026-86877 A path traversal issue was addressed with improved path validation

Description

A path traversal issue was addressed with improved path validation. This issue is fixed in macOS Golden Gate 27. A malicious app may be able to delete files for which it does not have privileges.

CVSS 3.1 detail

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Exploitable with local access to the machine, without an account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.

Attack vector: Local
Attack complexity: Low
Privileges required: None
Interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: High
Availability: None

Affected products and versions

Product	Affected versions	Fixed in
macOS 27	earliest → < 27	27

References

support.apple.com support.apple.com

Timeline

Published October 26, 2026
Last modified November 4, 2026

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