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macOS Tahoe: Malicious input may crash apps or cause data loss
CVE-2026-28842
Summary
A security issue was fixed in macOS Tahoe 26.4, which could have caused apps to crash or behave unexpectedly due to a programming error. This is important because it could have allowed malicious code to execute or data to be lost. To stay secure, update your macOS to version 26.4 or later.
Original title
The issue was addressed with improved bounds checks. This issue is fixed in macOS Tahoe 26.4. A buffer overflow may result in memory corruption and unexpected app termination.
Original description
The issue was addressed with improved bounds checks. This issue is fixed in macOS Tahoe 26.4. A buffer overflow may result in memory corruption and unexpected app termination.
Published: 25 Mar 2026 · Updated: 25 Mar 2026 · First seen: 25 Mar 2026