# CVE-2026-41526: kf6-kcoreaddons: In KDE KCoreAddons before 6.25, KShell::quoteArgs is intended to safely quote arguments so that they can be passed to...

CVE-2026-41526 is fixed in 5 products on 1 platform, first by libkf6coreaddons-data 6.24.0-0ubuntu1.1, released April 28, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-41526
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0017
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 28, 2026

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | kcoreaddons Debian 14 | 5.116.0-2 | [DEBIAN-CVE-2026-41526](https://patchblox.com/security/data/fix/linux/debian-cve-2026-41526.md) | Apr 28, 2026 |
| Linux | kf6-kcoreaddons Debian 14 | 6.26.0-1 | [DEBIAN-CVE-2026-41526](https://patchblox.com/security/data/fix/linux/debian-cve-2026-41526.md) | Apr 28, 2026 |
| Linux | libkf6coreaddons-data Ubuntu 26.04.1 LTS (resolute) | 6.24.0-0ubuntu1.1 | [libkf6coreaddons-data 6.24.0-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libkf6coreaddons-data-6.24.0-0ubuntu1.1.md) | Apr 28, 2026 |
| Linux | libkf6coreaddons6 Ubuntu 26.04.1 LTS (resolute) | 6.24.0-0ubuntu1.1 | [libkf6coreaddons6 6.24.0-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libkf6coreaddons6-6.24.0-0ubuntu1.1.md) | Apr 28, 2026 |
| Linux | qml6-module-org-kde-coreaddons Ubuntu 26.04.1 LTS (resolute) | 6.24.0-0ubuntu1.1 | [qml6-module-org-kde-coreaddons 6.24.0-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-qml6-module-org-kde-coreaddons-6.24.0-0ubuntu1.1.md) | Apr 28, 2026 |

---

Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.