Information disclosure in WebKitGTK+ and WPE WebKit - CVE-2026-43708
Published: July 8, 2026 / Updated: July 8, 2026
Vulnerability identifier: #VU137106
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-43708
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: WebKitGTK
Affected software:
WebKitGTK+
WPE WebKit
WebKitGTK+
WPE WebKit
Detailed vulnerability description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to improper input validation in WebKit. A remote attacker can trick the victim into visiting a specially crafted website and exfiltrate data cross-origin.
How to mitigate CVE-2026-43708
Install update from vendor's website.