Disclosure summary
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.
Source-reported weakness categories
CWE-150
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
Microsoft Security Updates (CVRF) · 2026-Apr
Open original source · Updated Sep 24, 2026
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.
Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.
Microsoft maximum product score: 6.5
| Vendor | Product / association | Version / bounds |
|---|---|---|
| Microsoft update guide | cbl2 kf5-kcoreaddons 5.61.0-4 on CBL-Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 kf-kcoreaddons 5.249.0-1 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | cbl2 kf5-kcoreaddons 5.61.0-4 on CBL Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 kf-kcoreaddons 5.249.0-2 on Azure Linux 3.0 | (MSRC status code 3) |
Vendor remediation references
- Release Notes · product IDs 21294-21692
- Vendor guidance · product IDs 21294-21692
- CBL-Mariner Releases · build 5.249.0-2 · product IDs 21293-17084, 21403-17084
- Vendor guidance · product IDs 21293-17084, 21403-17084
Original records & references
- NIST NVD record
- CVE Program record
- msrc.microsoft.com — Vendor advisory
PUBLISHED 2026-04-30T21:03:38-04:00
MODIFIED 2026-09-24T22:35:14-04:00
INGESTED 2026-10-08T12:45:03-04:00