Sandbox Escape in Apple iOS 27 via System Keychain Access

Publication date: 2026-09-14

Last updated on: 2026-09-14

Assigner: Apple Inc.

Description

An authorization issue was addressed with improved state management. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27, watchOS 27. A sandboxed app may be able to access the System Keychain.

CVSS Scores

EPSS Scores

Probability:
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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-2026-84628

Affected Vendors & Products

Vendor	Product	Version / Range
apple	ios	27
apple	ipad_os	27
apple	macos_golden_gate	27
apple	tv_os	27
apple	vision_os	27
apple	watch_os	27

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This is an authorization issue caused by poor state management in Apple's operating systems. A sandboxed app could potentially access the System Keychain, which stores sensitive credentials and data.

Impact Analysis

If exploited, a malicious app could steal stored passwords, encryption keys, or other sensitive data from the System Keychain. This could lead to unauthorized access to accounts, personal information, or secure services.

Mitigation Strategies

Update affected Apple devices to iOS 27, iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27, or watchOS 27 to address the authorization issue and prevent sandboxed apps from accessing the System Keychain.

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