State Issues in WPE WebKit and WebKitGTK+ - CVE-2026-20665
Published: March 25, 2026 / Updated: March 30, 2026
Vulnerability identifier: #VU124400
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:U/U:Amber
CVE-ID: CVE-2026-20665
CWE-ID: CWE-371
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: WebKitGTK
Affected software:
WPE WebKit
WebKitGTK+
WPE WebKit
WebKitGTK+
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to a state management issue in WebKit. A remote attacker can trick the victim into visiting a specially crafted website and prevent Content Security Policy from being enforced.
How to mitigate CVE-2026-20665
Install update from vendor's website.