CVE-2026-28890: Apple Xcode

Medium severity, CVSS 5.5. EPSS: 0.1% chance of exploitation in the next 30 days.

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.

Affected products

• Apple Xcode: before 26.4 (fixed in 26.4)

Published 2026-03-25. Last modified 2026-06-17.