CVE-2026-41527

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

21/04/2026

Last modified:

21/04/2026

Description

KDE Kleopatra before 26.08.0 on Windows allows local users to obtain the privileges of a Kleopatra user, because there is an error in the mechanism (KUniqueService) for ensuring that only one instance is running.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L CVSS v3.1 Severity and Metrics:

Base Score: 6.90 MEDIUM
Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): Low

Base Score 3.x

6.90

Severity 3.x

MEDIUM

References to Advisories, Solutions, and Tools

https://commits.kde.org/kleopatra/73471abb92d99c56354adb582bfaec2764c22b79
https://github.com/KDE/kleopatra/releases
https://kde.org/info/security/advisory-20260408-1.txt