Sandbox Escape via Entitlement Validation Bypass in macOS

Publication date: 2026-09-14

Last updated on: 2026-09-14

Assigner: Apple Inc.

Description

A validation issue existed in the entitlement verification. This issue was addressed with improved validation of the process entitlement. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. A malicious app may be able to break out of its sandbox.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-09-14

Last Modified

2026-09-14

Generated

2026-09-15

AI Q&A

2026-09-15

EPSS Evaluated

N/A

NVD

CVE-2026-65381

Affected Vendors & Products

Vendor	Product	Version / Range
apple	macos_golden_gate	27
apple	macos_sequoia	15.8
apple	macos_tahoe	26.7

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability is a validation issue in the entitlement verification process. It allows a malicious app to bypass sandbox restrictions due to insufficient validation of the process entitlement. The issue was fixed in specific macOS versions: Golden Gate 27, Sequoia 15.8, and Tahoe 26.7.

Impact Analysis

A malicious app could exploit this flaw to escape its sandbox, potentially gaining unauthorized access to system resources or user data. This could lead to data theft, privilege escalation, or further compromise of the affected system.

Mitigation Strategies

Update affected macOS systems to the fixed versions: macOS Golden Gate 27, macOS Sequoia 15.8, or macOS Tahoe 26.7. This addresses the validation issue in entitlement verification that could allow sandbox escape.

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