Buffer Overflow Affecting webkitgtk package, versions [,2.52.1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-WEBKITGTK-15855236
- published31 Mar 2026
- disclosed28 Mar 2026
- creditgreenbynox, Arni Hardarson
Introduced: 28 Mar 2026
CVE-2026-28859 (opens in a new tab)How to fix?
Upgrade webkitgtk to version 2.52.1 or higher.
Overview
Affected versions of this package are vulnerable to Buffer Overflow in the memory process. An attacker can execute arbitrary code or compromise system integrity by tricking a user into visiting a maliciously crafted web page. This is only exploitable if the system is configured with packages that require WebKitGTK4 (such as evolution-data-server, glade, gnome-boxes, gnome-initial-setup, gnome-online-accounts, gnome-shell, shotwell, sushi, or yelp) and these are used via a graphical interface to process untrusted web content, for example through GNOME. In gnome-shell, exploitation can occur from the local network without user interaction.
Workaround
This vulnerability can be mitigated by not visiting untrusted web pages or loading untrusted web content with WebKitGTK, or by removing packages that require WebKitGTK4 or WebKitGTK3 as appropriate.