USN-8857-1: KCoreAddons vulnerability
Publication date
1 October 2026
Overview
KCoreAddons could be made to run programs as your login if it received specially crafted input.
Releases
Packages
- kf6-kcoreaddons - KCoreAddons are addons to QtCore
Details
It was discovered that KCoreAddons incorrectly handled shell argument
quoting in KShell::quoteArgs. The parsing did not adequately handle shell
metacharacters, which could lead to a shell escape. An attacker could
possibly use this issue to execute arbitrary commands in applications that
relied on this method to handle user input.
It was discovered that KCoreAddons incorrectly handled shell argument
quoting in KShell::quoteArgs. The parsing did not adequately handle shell
metacharacters, which could lead to a shell escape. An attacker could
possibly use this issue to execute arbitrary commands in applications that
relied on this method to handle user input.
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 26.04 LTS resolute | libkf6coreaddons6 – 6.24.0-0ubuntu1.1 | ||
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