What iOS 26.4.2 Fixes
iOS 26.4.2 and iPadOS 26.4.2, released April 22, 2026, fixes 1 vulnerability in 1 part of the system, according to Apple's security advisory.
Apple does not say that any of them were exploited before the fix. That makes iOS 26.4.2 a routine security update: worth installing soon, not an emergency.
It has since been superseded: the newest security release for iOS 26 is iOS 26.7.2 and iPadOS 26.7.2, from October 26, 2026, which includes these fixes.
| What an attacker could do | Fixes |
|---|---|
| Other | 1 |
Grouped by us from the impact Apple gives for each fix; the impact lines below are Apple's own.
Which Devices Get iOS 26.4.2
Apple lists iOS 26.4.2 and iPadOS 26.4.2 for: iPhone 11 and later, iPad Pro 12.9-inch 3rd generation and later, iPad Pro 11-inch 1st generation and later, iPad Air 3rd generation and later, iPad 8th generation and later, and iPad mini 5th generation and later.
How to Install iOS 26.4.2
On the iPhone, open Settings → General → Software Update. If more than one update is offered, the one with the higher version number is the current release; the other is for people who want to stay on the previous major version.
Security fixes are cumulative: any later release for the same version includes these as well, so if you are already past iOS 26.4.2 there is nothing to do.
Every Fix in iOS 26.4.2
All 1 CVE in Apple's advisory, the most serious kinds first. Each entry is the part of the system affected, Apple's description of the impact and the fix, and the CVE ID.
-
Notification Services
Notifications marked for deletion could be unexpectedly retained on the device
A logging issue was addressed with improved data redaction.
CVE-2026-28950
iOS 26 Security Release History
iOS 26.4.2 in context: the security releases Apple has published for iOS 26, newest first, with the number of fixes each carried.
| Release | Released | Fixes |
|---|---|---|
| iOS 26.7 | September 14, 2026 | 95 |
| iOS 26.6.1 | August 17, 2026 | 35 |
| iOS 26.6 | July 27, 2026 | 97 |
| iOS 26.5.2 | June 29, 2026 | 38 |
| iOS 26.5 | May 11, 2026 | 67 |
| iOS 26.4.2 | April 22, 2026 | 1 |
| iOS 26.4 | March 24, 2026 | 44 |
| iOS 26.3 | February 11, 2026 | 44 Exploited |
| iOS 26.2 | December 12, 2025 | 39 Exploited |
| iOS 26.1 | November 3, 2025 | 62 |
| iOS 26.0.1 | September 29, 2025 | 1 |
The Same Fixes Elsewhere
Apple ships most fixes to every platform that shares the code, and to older versions still under support. These releases close at least one of the same CVEs:
Frequently Asked Questions
What does iOS 26.4.2 fix?
1 security vulnerability in 1 part of the system, from Apple's advisory of April 22, 2026.
Was anything fixed in iOS 26.4.2 exploited?
Apple does not say so for any of the 1 fixes.
Which devices can install iOS 26.4.2?
iPhone 11 and later, iPad Pro 12.9-inch 3rd generation and later, iPad Pro 11-inch 1st generation and later, iPad Air 3rd generation and later, iPad 8th generation and later, and iPad mini 5th generation and later.
Is iOS 26.4.2 the latest security update?
No. iOS 26.7.2 and iPadOS 26.7.2, from October 26, 2026, is newer and includes these fixes.
Source: About the security content of iOS 26.4.2 and iPadOS 26.4.2, Apple. Rechecked automatically while Apple is still adding entries.