UAF in Safari WebKit on macOS before 26.5 (fixed 26.5)
CVE-2026-28946 Published on May 11, 2026

A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Tahoe 26.5. Processing maliciously crafted web content may lead to an unexpected Safari crash.

NVD

Vulnerability Analysis

CVE-2026-28946 is exploitable 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 have no impact on confidentiality and integrity, and a high impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality Impact:
NONE
Integrity Impact:
NONE
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-2026-28946 has been classified to as a Dangling pointer vulnerability or weakness.


Products Associated with CVE-2026-28946

Want to know whenever a new CVE is published for Apple macOS? stack.watch will email you.

 

Affected Versions

Apple macOS: