CVE-2026-28889

Received Received - Intake

Improper Permissions in Xcode Allows Root-Level File Access

Publication date: 2026-03-25

Last updated on: 2026-03-26

Assigner: Apple Inc.

Description

A permissions issue was addressed with additional restrictions. This issue is fixed in Xcode 26.4. An app may be able to read arbitrary files as root.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-03-25

Last Modified

2026-03-26

Generated

2026-07-06

AI Q&A

2026-03-25

EPSS Evaluated

2026-07-05

NVD

CVE-2026-28889

EUVD

EUVD-2026-15167

Affected Vendors & Products

Vendor	Product	Version / Range
apple	xcode	to 26.4 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-269	The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

Attack-Flow Graph

Executive Summary

CVE-2026-28889 is a permissions vulnerability found in the Simulator component of Xcode 26.4 on macOS Tahoe 26.2 and later.

Due to this issue, an app running in the Simulator could potentially read arbitrary files with root privileges, which means it could access files it normally should not be able to.

The vulnerability was fixed by adding additional restrictions to the permissions, and the fix was included in the Xcode 26.4 release.

Impact Analysis

This vulnerability could allow an app running in the Xcode Simulator to read arbitrary files on the system with root privileges.

Such unauthorized access could lead to exposure of sensitive or confidential information stored in those files.

If exploited, it could compromise the security and privacy of the system and its data.

Compliance Impact

I don't know

Detection Guidance

I don't know

Mitigation Strategies

To mitigate this vulnerability, you should update to Xcode version 26.4 or later, which includes the fix that adds additional restrictions to correct the permissions issue.

Ensure that your macOS version is Tahoe 26.2 or later, as the fix applies to these versions.

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