Use After Free Affecting webkitgtk package, versions [,2.48.7)
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-13023338
- published26 Sept 2025
- disclosed23 Sept 2025
- creditJaydev Ahire
Introduced: 23 Sep 2025
NewCVE-2025-43356 (opens in a new tab)How to fix?
Upgrade webkitgtk to version 2.48.7 or higher.
Overview
Affected versions of this package are vulnerable to Use After Free via improper handling of caches. An attacker can obtain unauthorized access to sensor information by tricking a user into visiting a malicious website. This is only exploitable if the system is configured with certain packages that process untrusted web content via a graphical interface, such as GNOME, and those packages are actively used.
Workaround
This vulnerability can be mitigated by avoiding the processing or loading of untrusted web content, removing packages that require WebKitGTK4 if feasible, or using the system via a terminal interface instead of a graphical one.