Vulnerability DatabaseCVE-2026-43740
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CVE-2026-43740
Published:June 29, 2026
Updated:July 21, 2026
The issue was addressed with improved memory handling. 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 result in the disclosure of process memory.
Affected Packages
https://github.com/WebKit/WebKit.git (GITHUB):
Affected version(s) >=webkitgtk-2.50.0 <webkitgtk-2.53.1
Fix Suggestion:
Update to version webkitgtk-2.53.1
Related Resources (3)
https://support.apple.com/en-us/127595
https://support.apple.com/en-us/127594
https://support.apple.com/en-us/127685
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CVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Use After Free
CWE-416
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-119
EPSS
Base Score:
0.20