USN-7941-1: WebKitGTK vulnerabilities

USN-7941-1: WebKitGTK vulnerabilities

Publication date: 5 January 2026
Overview: Several security issues were fixed in WebKitGTK.

Packages
webkit2gtk - Web content engine library for GTK+

Details
Several security issues were discovered in the WebKitGTK Web and JavaScript
engines. If a user were tricked into viewing a malicious website, a remote
attacker could exploit a variety of issues related to web browser security,
including cross-site scripting attacks, denial of service attacks, and
arbitrary code execution.

Update instructions
The problem can be corrected by updating your system to the following package versions:

25.10 questing

• libjavascriptcoregtk-4.1-0 – 2.50.3-0ubuntu0.25.10.1
• libjavascriptcoregtk-6.0-1 – 2.50.3-0ubuntu0.25.10.1
• libwebkit2gtk-4.1-0 – 2.50.3-0ubuntu0.25.10.1
• libwebkitgtk-6.0-4 – 2.50.3-0ubuntu0.25.10.1

25.04 plucky

• libjavascriptcoregtk-4.1-0 – 2.50.3-0ubuntu0.25.04.1
• libjavascriptcoregtk-6.0-1 – 2.50.3-0ubuntu0.25.04.1
• libwebkit2gtk-4.1-0 – 2.50.3-0ubuntu0.25.04.1
• libwebkitgtk-6.0-4 – 2.50.3-0ubuntu0.25.04.1

24.04 LTS noble

• libjavascriptcoregtk-4.1-0 – 2.50.3-0ubuntu0.24.04.1
• libjavascriptcoregtk-6.0-1 – 2.50.3-0ubuntu0.24.04.1
• libwebkit2gtk-4.1-0 – 2.50.3-0ubuntu0.24.04.1
• libwebkitgtk-6.0-4 – 2.50.3-0ubuntu0.24.04.1

22.04 LTS jammy

• libjavascriptcoregtk-4.0-18 – 2.50.3-0ubuntu0.22.04.1
• libjavascriptcoregtk-4.1-0 – 2.50.3-0ubuntu0.22.04.1
• libjavascriptcoregtk-6.0-1 – 2.50.3-0ubuntu0.22.04.1
• libwebkit2gtk-4.0-37 – 2.50.3-0ubuntu0.22.04.1
• libwebkit2gtk-4.1-0 – 2.50.3-0ubuntu0.22.04.1
• libwebkitgtk-6.0-4 – 2.50.3-0ubuntu0.22.04.1