CVE-2026-41526: In KDE KCoreAddons before 6.25, KShell::quoteArgs is intended to safely quote arguments so that they can be pa

Q: How do I fix CVE-2026-41526?

kcoreaddons: upgrade to 6.25.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-41526 being exploited?

CVE-2026-41526 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-41526 affect?

CVE-2026-41526 affects kcoreaddons. Severity is medium (CVSS 6.5). 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 applicat

Q: How urgent is CVE-2026-41526?

Priority 24/100. No elevated risk signals yet.

Routine

MEDIUM 6.5UPGRADE

CVE-2026-41526 is a medium-severity flaw (CVSS 6.5) affecting kcoreaddons. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 \x0

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Local
Attack complexity	High
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 94%)
CISA exploited list	No
Weakness	CWE-150
Published	2026-04-28
Last modified	2026-10-26

Publisher (CNA): MITRE · Vendor: kde

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-28 08:16 UTCPublished CVE record published
2026-10-26 21:10 UTCUpdated Record last modified

kde kcoreaddons UPGRADE

Affected: < 6.25.0

Fixed in: 6.25.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy kcoreaddons || rpm -q kcoreaddons || kcoreaddons --version

2. UPGRADE to 6.25.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade kcoreaddons

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade kcoreaddons

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-41526?

kcoreaddons: upgrade to 6.25.0. Exact commands for each OS are on this page.

Is CVE-2026-41526 being exploited?

CVE-2026-41526 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-41526 affect?

CVE-2026-41526 affects kcoreaddons. Severity is medium (CVSS 6.5). 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 applicat

How urgent is CVE-2026-41526?

Priority 24/100. No elevated risk signals yet.

References

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