Apple resolves issue with iOS bug that stored deleted notification data

Apple Releases Emergency Updates to Fix Notification Services Flaw

Apple has recently issued out-of-band security updates for iPhone and iPad devices to address a critical Notification Services vulnerability. This flaw, identified as CVE-2026-28950, was patched on April 22, 2026, through the release of iOS 26.4.2 and iPadOS 26.4.2, as well as iOS 18.7.8 and iPadOS 18.7.8.

The security bulletin from Apple highlighted that the bug allowed notifications marked for deletion to persist on the device, posing a potential security risk. The company swiftly resolved the issue by implementing enhanced data redaction measures.

While Apple did not disclose further details regarding the nature of the vulnerability or any potential exploitation instances, the company urged users to promptly install the latest updates to safeguard their devices from unintended data retention issues.

Recent reports have raised concerns about the retrieval of deleted Signal messages from iPhones, indicating that notification data storage might have played a role in retaining sensitive information. Apple’s rapid response to this incident hints at the critical nature of the flaw and the importance of immediate action.

To mitigate the risks associated with notification data persistence, users can adjust their Signal settings to limit the content displayed in notifications, thus reducing the chances of data retention on their devices.

BleepingComputer reached out to Apple for clarification on the updates but has not yet received a response.

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