========================================================================== Ubuntu Security Notice USN-8237-1 May 06, 2026
webkit2gtk vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 26.04 LTS - Ubuntu 25.10 - Ubuntu 24.04 LTS Summary: Several security issues were fixed in WebKitGTK. Software Description: - 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: Ubuntu 26.04 LTS libjavascriptcoregtk-4.1-0 2.52.3-0ubuntu0.26.04.2 libjavascriptcoregtk-6.0-1 2.52.3-0ubuntu0.26.04.2 libwebkit2gtk-4.1-0 2.52.3-0ubuntu0.26.04.2 libwebkitgtk-6.0-4 2.52.3-0ubuntu0.26.04.2 Ubuntu 25.10 libjavascriptcoregtk-4.1-0 2.52.3-0ubuntu0.25.10.1 libjavascriptcoregtk-6.0-1 2.52.3-0ubuntu0.25.10.1 libwebkit2gtk-4.1-0 2.52.3-0ubuntu0.25.10.1 libwebkitgtk-6.0-4 2.52.3-0ubuntu0.25.10.1 Ubuntu 24.04 LTS libjavascriptcoregtk-4.1-0 2.52.3-0ubuntu0.24.04.1 libjavascriptcoregtk-6.0-1 2.52.3-0ubuntu0.24.04.1 libwebkit2gtk-4.1-0 2.52.3-0ubuntu0.24.04.1 libwebkitgtk-6.0-4 2.52.3-0ubuntu0.24.04.1 This update uses a new upstream release, which includes additional bug fixes. After a standard system update you need to restart any applications that use WebKitGTK, such as Epiphany, to make all the necessary changes. References: https://ubuntu.com/security/notices/USN-8237-1 CVE-2025-43213, CVE-2025-43214, CVE-2025-43457, CVE-2025-43511, CVE-2025-46299, CVE-2026-20608, CVE-2026-20635, CVE-2026-20636, CVE-2026-20643, CVE-2026-20644, CVE-2026-20652, CVE-2026-20664, CVE-2026-20665, CVE-2026-20676, CVE-2026-20691, CVE-2026-28857, CVE-2026-28859, CVE-2026-28861, CVE-2026-28871 Package Information: https://launchpad.net/ubuntu/+source/webkit2gtk/2.52.3-0ubuntu0.26.04.2 https://launchpad.net/ubuntu/+source/webkit2gtk/2.52.3-0ubuntu0.25.10.1 https://launchpad.net/ubuntu/+source/webkit2gtk/2.52.3-0ubuntu0.24.04.1
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