CVE-2026-41526 — In KDE KCoreAddons before 6.25, KShell::quoteArgs is
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-c
What This Means For You
- If your environment is affected by CWE-150, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-41526 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
2 rules · 6 SIEM formats2 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
CVE-2026-41526 - KCoreAddons KShell::quoteArgs Shell Escape via Control Character
title: CVE-2026-41526 - KCoreAddons KShell::quoteArgs Shell Escape via Control Character
id: scw-2026-04-28-ai-1
status: experimental
level: high
description: |
Detects the use of the control character '\x01' within command lines, which is a specific indicator of exploitation for CVE-2026-41526. This vulnerability in KDE KCoreAddons' KShell::quoteArgs function allows for shell escapes by improperly handling metacharacters, and the '\x01' character is noted as a potential injection vector when used with sendInput().
author: SCW Feed Engine (AI-generated)
date: 2026-04-28
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-41526/
tags:
- attack.execution
- attack.t1059.004
logsource:
category: process_creation
detection:
selection:
CommandLine|contains:
- '\x01'
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-41526 | vulnerability | CVE-2026-41526 |
| CWE-150 | weakness | CWE-150 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | April 28, 2026 at 11:16 UTC |
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