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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-41526

29
FAUCET Score

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.

First published: Apr 28, 2026Last modified: Apr 28, 2026

Impacted Technologies

VendorProductVersion(s)CPE
>= 0, < 6.25CPE match
cpe:2.3:a:kde:kcoreaddons:*:*:*:*:*:*:*:*
< 6.25.0CPE matchmatch criteria
cpe:2.3:a:kde:kcoreaddons:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
LOW
Exploitability Score
1.0
Impact Score
5.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.17%
Probability of exploitation in next 30 days
EPSS Percentile
6.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0017 is in the 5th percentile among its peer group of 11,616 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

microsoftpatch availablevia msrc
Product: azl3 kf-kcoreaddons 5.249.0-1 on Azure Linux 3.0Fixed in: 5.249.0-2
microsoftpatch availablevia msrc
Product: azl3 kf-kcoreaddons 5.249.0-2 on Azure Linux 3.0Fixed in: 5.249.0-2
microsoftpatch availablevia msrc
Product: 21293-17084Fixed in: 5.249.0-2
microsoftpatch availablevia msrc
Product: 21403-17084Fixed in: 5.249.0-2

Vendor Advisories (1)

microsoft2026-Apr/CVE-2026-41526Moderate

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.

Apr 14, 2026

References

github.com / KDE/kcoreaddons/blob/50d360736c399502fedf203e95482b0d0e5a3ea2/src/lib/util/kshell.h
Product
github.com / KDE/kcoreaddons/blob/50d360736c399502fedf203e95482b0d0e5a3ea2/src/lib/util/kshell.h
Product
github.com / KDE/kcoreaddons/releases/tag/v6.25.0
Release Notes
invent.kde.org / frameworks/kcoreaddons
Product
kde.org / info/security/advisory-20260427-1.txt
Vendor Advisory