Improper control of a resource through its lifetime in WebKitGTK+ and WPE WebKit - CVE-2026-43804
Published: August 17, 2026 / Updated: August 17, 2026
Vulnerability identifier: #VU143695
CSH Severity: Medium
CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-43804
CWE-ID: CWE-664
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper state management in WebKit when visiting a website. A remote attacker can host a crafted website to cause a denial of service.
User interaction is required to visit the website.
Affected software
WebKitGTK+
WPE WebKit
visionOS
macOS
iPadOS
Apple iOS
Apple Safari
WPE WebKit
visionOS
macOS
iPadOS
Apple iOS
Apple Safari
How to mitigate CVE-2026-43804
Install security update from vendor's website.
visionOS - update to 26.6
macOS - update to 26.6 25G72
Apple Safari - update to 26.6
iPadOS - update to 26.6 23G71
Apple iOS - update to 26.6 23G71
macOS - update to 26.6 25G72
Apple Safari - update to 26.6
iPadOS - update to 26.6 23G71
Apple iOS - update to 26.6 23G71