WebKit2GTK is the GTK+ port of the WebKit rendering engine used by GNOME/GTK applications to render web content.
Overview
WebKit2GTK is the GTK+ port of the WebKit rendering engine used by GNOME/GTK applications to render web content. It constitutes a key web-rendering component in desktop environments, and vulnerabilities can create significant attack surfaces in apps that embed web content. The Debian 11 security advisory DLA-4394-1 references a CVE-2025 vulnerability in WebKit2GTK, underscoring the importance of timely patching for defenders.
Related Threat Clusters
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Debian WebKitGTK Vulnerabilities Lead to Image Data Exfiltration and Crashes
Multiple vulnerabilities in WebKitGTK have been identified, affecting Debian 11 users. Key issues include CVE-2025-43392, which allows cross-origin image data exfiltration, and several crash vulnerabilities…
6 articles · Updated December 4, 2025 -
Critical XSS and DoS Vulnerabilities in WebKitGTK Affect Ubuntu Users
Multiple vulnerabilities have been identified in the WebKitGTK Web and JavaScript engines, which could allow remote attackers to exploit affected systems through cross-site scripting (XSS) and denial of service (DoS)…
2 articles · Updated August 31, 2026
Recent Intelligence Reports
- Ubuntu WebKitGTK Important XSS and DoS Vulnerabilities USN-8703 — Linuxsecurity · August 31, 2026
- Debian 11: Webkit2gtk Critical Security Update DLA-4394-1 CVE-2025 — Linuxsecurity · December 4, 2025