CVE-2026-41526

Description

In KDE KCoreAddons before 6.25, KShell::quoteArgs is intended to safely quote arguments so that they can be passed to a shell command. This parsing does not adequately handle metacharacters, leading to an escape from the shell. All applications relying on this method in a security-critical path to handle user input are affected and could be exploited. In particular, because sendInput() sends a string to a terminal, a control character such as \x01 can be used during injection.

References

• https://github.com/KDE/kcoreaddons/blob/50d360736c399502fedf203e95482b0d0e5a3ea2/src/lib/util/kshell.h#L168
• https://github.com/KDE/kcoreaddons/blob/50d360736c399502fedf203e95482b0d0e5a3ea2/src/lib/util/kshell.h#L43-L49
• https://github.com/KDE/kcoreaddons/releases/tag/v6.25.0
• https://invent.kde.org/frameworks/kcoreaddons/
• https://kde.org/info/security/advisory-20260427-1.txt