CVE-2026-28889
Improper Permissions in Xcode Allows Root-Level File Access
Publication date: 2026-03-25
Last updated on: 2026-03-26
Assigner: Apple Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| apple | xcode | to 26.4 (exc) |
Helpful Resources
Exploitability
| 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
AI Powered Q&A
Can you explain this vulnerability to me?
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.
How can this vulnerability impact me? :
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.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
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.