Apple Safari <26.5.2: UAF in Web Content (fixed v26.5.2)
CVE-2026-43731 Published on June 29, 2026

A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. Processing maliciously crafted web content may lead to memory corruption.

NVD

Vulnerability Analysis

CVE-2026-43731 can be exploited with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Weakness Type

What is a Dangling pointer Vulnerability?

Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.

CVE-2026-43731 has been classified to as a Dangling pointer vulnerability or weakness.


Products Associated with CVE-2026-43731

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Apple iOS
 
Apple iPadOS
 
Apple macOS
 
Apple Safari
 
Apple Ios And Ipados
 

Affected Versions

Apple Safari: Apple iOS and iPadOS: Apple macOS: