The issue was addressed with improved memory handling. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4. A malicious website may be able to process restricted web content outside the sandbox.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 7
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Apple Safari
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
|
— |
26.4
|
|
Apple Ipados
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
|
— |
26.4
|
|
Apple Iphone_Os
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
|
— |
26.4
|
|
Apple Macos
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
|
— |
26.4
|
|
Apple Tvos
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
|
— |
26.4
|
|
Apple Visionos
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*
|
— |
26.4
|
|
Apple Watchos
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
|
— |
26.4
|
References 6
https://support.apple.com/en-us/126792
product-security@apple.com
https://support.apple.com/en-us/126794
product-security@apple.com
https://support.apple.com/en-us/126797
product-security@apple.com
https://support.apple.com/en-us/126798
product-security@apple.com
https://support.apple.com/en-us/126799
product-security@apple.com
https://support.apple.com/en-us/126800
product-security@apple.com