Vulnerability in KDE Kcoreaddons
CVE-2026-41526
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L.
EPSS exploit prediction
EPSS: 0.003 (15.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 15.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
- KDE Kcoreaddons — versions 0
Weakness classification (CWE)
References
- invent.kde.org/frameworks/kcoreaddons/ (Product)
- github.com/KDE/kcoreaddons/blob/50d360736c399502fedf203e95482b0d0e5a3ea2/src/li… (Product)
- github.com/KDE/kcoreaddons/blob/50d360736c399502fedf203e95482b0d0e5a3ea2/src/li… (Product)
- github.com/KDE/kcoreaddons/releases/tag/v6.25.0 (Release Notes)
- kde.org/info/security/advisory-20260427-1.txt (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-41526?
- CVE-2026-41526 is a medium-severity vulnerability in KDE Kcoreaddons, classified under CWE-150. CVSS score: 6.5/10. Published 2026-04-28.
- How severe is CVE-2026-41526?
- Medium severity. CVSS v3 base score is 6.5 out of 10.