Medium severity · published Apr 21, 2026
CVE-2026-41527
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…
6.9
CVSS
0.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Attack vector
Local
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 1% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KL
Kleopatra · KDE
before 26.08.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-41527
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-41527
commits.kde.org
https://commits.kde.org/kleopatra/73471abb92d99c56354adb582bfaec2764c22b79
github.com
https://github.com/KDE/kleopatra/releases
kde.org
https://kde.org/info/security/advisory-20260408-1.txt