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Xcode 26.4: Malicious app may cause sudden app crash
CVE-2026-28890
Summary
A security issue in Xcode 26.4 could allow a malicious app to crash your system. This has been fixed in the latest version of Xcode, which you should update to. Update Xcode to the latest version to protect your system from this potential issue.
Original title
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in Xcode 26.4. An app may be able to cause unexpected system termination.
Original description
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in Xcode 26.4. An app may be able to cause unexpected system termination.
Published: 25 Mar 2026 · Updated: 25 Mar 2026 · First seen: 25 Mar 2026