ZDI-CAN-28879: ZDI-26-312: Apple Safari Web Inspector WebCore Style Resolver Use-After-Free Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Apple Safari. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the WebCore style resolver in Web Inspector. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the browser process.
Other sources
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Apple Safari. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The ZDI has assigned a CVSS rating of 7.5. The following CVEs are assigned: CVE-2026-28955.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-CAN-28879?
ZDI-CAN-28879 is classified as a critical vulnerability due to its potential for remote code execution.
How do I fix ZDI-CAN-28879?
To fix ZDI-CAN-28879, update Apple Safari to the latest version as recommended by Apple.
What are the consequences of exploiting ZDI-CAN-28879?
Exploiting ZDI-CAN-28879 allows attackers to execute arbitrary code, potentially compromising the affected system's integrity.
Is user interaction required to exploit ZDI-CAN-28879?
Yes, user interaction is required to exploit ZDI-CAN-28879, making it a targeted type of attack.
Which software is affected by ZDI-CAN-28879?
ZDI-CAN-28879 affects Apple Safari installations.