About the security content of iOS 26.6.1 and iPadOS 26.6.1

This update delivers security fixes that were first made available in the iOS 27 and iPadOS 27 betas. This document describes the security content of iOS 26.6.1 and iPadOS 26.6.1.

About Apple security updates

For our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available. Recent releases are listed on the Apple security releases page.

Apple security documents reference vulnerabilities by CVE-ID when possible.

For more information about security, see the Apple Product Security page.

iOS 26.6.1 and iPadOS 26.6.1

Audio

Available 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

Impact: An app may be able to leak sensitive user information

Description: A logic issue was addressed with improved checks.

CVE-2026-65339: Mustafa Calap (@ordinal0, dbg.re), Meta Red Team X - Nik Tsytsarkin

Authentication Services

Available 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

Impact: A website may be able to determine a user's IP address with Private Relay turned on

Description: An information disclosure issue was addressed with improved state management.

CVE-2026-65355: Xint Code

ImageIO

Available 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

Impact: Processing an image may lead to a denial-of-service

Description: The issue was addressed with improved checks.

CVE-2026-65347: Geonha Lee (@leegn4a)

ImageIO

Available 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

Impact: Processing an image may lead to arbitrary code execution

Description: An integer overflow was addressed with improved input validation.

CVE-2026-65346: Meta Red Team X - Nik Tsytsarkin

IOGPUFamily

Available 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

Impact: Processing maliciously crafted web content may lead to memory corruption

Description: The issue was addressed with improved memory handling.

CVE-2026-64788: an anonymous researcher, f00l (@PPPF00L) and 3ndy1(@_3ndy1) and Minghao Lin@Y1nkoc and 云散花折, Arjanit Isufi

IOMobileFrameBuffer

Available 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

Impact: An app may be able to cause unexpected system termination or corrupt kernel memory

Description: An out-of-bounds access issue was addressed with improved bounds checking.

CVE-2026-64736: Ruslan Dautov, hxr1

Kernel

Available 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

Impact: A remote attacker may be able to cause unexpected system termination

Description: A use after free issue was addressed with improved memory management.

CVE-2026-65343: Drinor Selmanaj (Sentry), Surya Narayan Kushwaha

Kernel

Available 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

Impact: An app may be able to cause unexpected system termination or read kernel memory

Description: An out-of-bounds read was addressed with improved input validation.

CVE-2026-65349: an anonymous researcher

Kernel

Available 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

Impact: An app may be able to cause unexpected system termination or corrupt kernel memory

Description: The issue was addressed with improved memory handling.

CVE-2026-65330: Ashish Kunwar, Mikhail Lozhnikov of Positive Technologies, Bhaswanth Chigurupati, Billy Jheng Bing Jhong and Pan Zhenpeng (@Peterpan0927) of STAR Labs SG Pte. Ltd.

CVE-2026-28935: Billy Jheng Bing Jhong and Pan Zhenpeng (@Peterpan0927) of STAR Labs SG Pte. Ltd.

Telephony

Available for: iPhone 11 and later

Impact: An attacker in a privileged network position may be able to bypass IPSec authentication and intercept network traffic

Description: An authentication issue was addressed with improved state management.

CVE-2026-65329: Bedran Karakoc, Tobias Funke, Jacopo Clark, Katharina Kohls of Ruhr University Bochum

WebKit

Available 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

Impact: Processing maliciously crafted web content may lead to an unexpected Safari crash

Description: An out-of-bounds access issue was addressed with improved bounds checking.

CVE-2026-64784: Janggoon Lee of Out of Bounds, OpenAI Codex Security - Amy Burnett

WebKit

Available 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

Impact: Processing maliciously crafted web content may lead to an unexpected Safari crash

Description: The issue was addressed with improved memory handling.

CVE-2026-43795: wwwlk

CVE-2026-65338: OpenAI Codex Security - Amy Burnett

WebKit

Available 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

Impact: Processing maliciously crafted web content may lead to memory corruption

Description: The issue was addressed with improved memory handling.

CVE-2026-65341: Henock Habte

WebKit

Available 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

Impact: Processing maliciously crafted web content may lead to an unexpected Safari crash

Description: A memory corruption vulnerability was addressed with improved locking.

CVE-2026-64782: Charles Kern, Seonwook Kim, Shubham Chaskar, lattice, Josef Korbel

WebKit

Available 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

Impact: Processing maliciously crafted web content may lead to an unexpected Safari crash

Description: The issue was addressed with improved input validation.

CVE-2026-64781: Thomas Guillem

WebKit

Available 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

Impact: Processing maliciously crafted web content may lead to an unexpected Safari crash

Description: This issue was addressed through improved state management.

CVE-2026-65351: Niels Hofmans

CVE-2026-65340: Claudio Bozzato and Francesco Benvenuto of Cisco Talos, Josef Korbel (Citadelo)

CVE-2026-65337: OpenAI Codex Security - Amy Burnett

CVE-2026-65336: Josef Korbel

CVE-2026-65335: OpenAI Codex Security - Amy Burnett

CVE-2026-65333: OpenAI Codex Security - Amy Burnett

CVE-2026-65332: Kun Peeks (@SwayZGl1tZyyy), OpenAI Codex Security - Amy Burnett

CVE-2026-65331: OpenAI Codex Security - Amy Burnett

WebKit

Available 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

Impact: Processing maliciously crafted web content may lead to an unexpected process crash

Description: A use-after-free issue was addressed with improved memory management.

CVE-2026-64715: Hossein Lotfi (@hosselot) of TrendAI Zero Day Initiative

WebKit

Available 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

Impact: Processing maliciously crafted web content may lead to an unexpected Safari crash

Description: The issue was addressed with improved checks.

CVE-2026-64780: OpenAI Codex Security - Amy Burnett

WebKit

Available 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

Impact: Processing maliciously crafted web content may lead to an unexpected Safari crash

Description: A memory corruption issue was addressed with improved state management.

CVE-2026-65334: OpenAI Codex Security - Amy Burnett

WebKit

Available 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

Impact: Processing maliciously crafted web content may lead to memory corruption

Description: A memory corruption issue was addressed with improved memory handling.

CVE-2026-43794: Dung Do (@_piers2) of Calif.io

WebKit

Available 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

Impact: Processing maliciously crafted web content may lead to an unexpected process termination

Description: A use-after-free issue was addressed with improved memory management.

CVE-2026-64787: 杉山 壮太, Shubham Chaskar

WebKit

Available 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

Impact: A website may be able to determine a user's IP address with Private Relay turned on

Description: An information disclosure issue was addressed with improved state management.

CVE-2026-65352: Talal Haj Bakry and Tommy Mysk of Mysk Inc. @mysk_co

WebKit History

Available 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

Impact: Visiting a maliciously crafted website may leak sensitive data

Description: The issue was addressed with improved checks.

CVE-2026-64778: Mohit Negi

WebKit Storage

Available 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

Impact: Processing maliciously crafted web content may lead to an unexpected Safari crash

Description: A memory corruption vulnerability was addressed with improved locking.

CVE-2026-64779: Shubham Chaskar, Tommy DeVoss from Braze Security Team (@thedawgyg)

WebRTC

Available 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

Impact: Processing maliciously crafted web content may lead to memory corruption

Description: An out-of-bounds write issue was addressed with improved bounds checking.

CVE-2026-65391: Myungyong Lee

WebRTC

Available 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

Impact: Processing maliciously crafted web content may lead to memory corruption

Description: An integer overflow was addressed with improved input validation.

CVE-2026-65390: Kwak Kiyong (@Pwnkai23), Song Nuri

Additional recognition

Compression

We would like to acknowledge Tommy DeVoss from Braze Security Team (@thedawgyg) for their assistance.

libcryptex

We would like to acknowledge Ashish Kunwar for their assistance.

WebKit

We would like to acknowledge Henock Habte for their assistance.