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Microsoft Security Response CenterCVE-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.

Mariner

Read the vendor bulletin Get alerts for cbl2 kf5-kcoreaddons 5.61.0-4 on CBL-Mariner
6.5CVSS out of 10Medium severity
Scope

What the vendor says is affected

  • cbl2 kf5-kcoreaddons 5.61.0-4 on CBL-Mariner 2.0
  • azl3 kf-kcoreaddons 5.249.0-1 on Azure Linux 3.0
  • cbl2 kf5-kcoreaddons 5.61.0-4 on CBL Mariner 2.0
  • azl3 kf-kcoreaddons 5.249.0-2 on Azure Linux 3.0

Versions the vendor lists as fixed

  • 5.249.0-2
Next step

What the vendor recommends

Release Notes CBL-Mariner Releases

Review the complete instructions on the vendor's site
Timeline

When this advisory changed

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Updated by Microsoft Security Response Center

    The vendor changed the advisory after it was first published.

  3. Added to SecurityAlert

    We collected the advisory from the official source.

Vulnerabilities

CVEs named in this advisory

CVE-2026-41526View CVSS, KEV, EPSS, and threat context
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