CVE-2026-64790

Path Handling Flaw Enabling Privilege Escalation in macOS

Published Sep 14, 2026 CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Description
A path handling issue was addressed with improved validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to gain elevated privileges.

Analysis

AI-generated

Technical impact

A path handling flaw in paths in a way that the operating system interprets as higher privilege access. The weakness is a CWE‑22 (Path Traversal) defect that permits an application to override intended permissions, enabling the process to perform privileged operations, modify system files, or access restricted data. This can result in the attacker gaining full administrative control over the affected machine.

Affected Systems

Apple macOS versions Golden Gate 27, Sequoia 15.8, and Tahoe 26.7 are affected. All other releases are not impacted according to the vendor advisory.

Risk and Exploitability

The CVSS score of 7.8 categorizes the vulnerability as High. The EPSS score is < 1 % and the flaw is not listed in CISA KEV, indicating low exploitation probability. The attack likely requires a local, authenticated user to run a crafted application that leverages the path handling defect, after which the application can elevate itself to higher privileges. A remote exploit would need to deliver such a malicious application, for example via phishing or a malicious download, making local execution the primary vector.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Install macOS Golden Gate 27 or newer, Sequoia 15.8 or newer, and Tahoe 26.7 or newer to apply the path‑validation fix.
  • Restrict execution to applications signed by trusted developers and enabled by Gatekeeper so that only trusted code can run on the system.
  • Enable and enforce System Integrity Protection (SIP) so that even if an application attempts to obtain elevated rights, the integrity policy blocks unauthorized escalation.

Generated by OpenCVE AI on September 20, 2026 at 20:46 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Title Path Handling Flaw Enabling Privilege Escalation in macOS
Type Values Removed Values Added
CPEs cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Weaknesses CWE-22
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
Title Path Handling Vulnerability Allowing Privilege Escalation in macOS
Weaknesses CWE-20
CWE-269
Type Values Removed Values Added
Title Path Handling Vulnerability Allowing Privilege Escalation in macOS
Weaknesses CWE-20
CWE-269
Type Values Removed Values Added
First Time appeared Apple
Apple macos
Vendors & Products Apple
Apple macos
Type Values Removed Values Added
Description A path handling issue was addressed with improved validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to gain elevated privileges.
References
Weaknesses
  • CWE-22

    Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Sources

Status
PUBLISHED
Assigner
apple
Published
Updated
Oct 26, 2026, 8:36 PM
Reserved
Jul 20, 2026, 6:11 PM
Status
Analyzed
Published
Sep 14, 2026, 9:17 PM
Modified
Sep 16, 2026, 5:21 PM