CVE-2026-41527

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Summary

CVECVE-2026-41527
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-21 22:16:20 UTC
Updated2026-04-21 22:16:20 UTC
DescriptionKDE 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.

Risk And Classification

Primary CVSS: v3.1 6.9 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

Problem Types: CWE-670 | CWE-670 CWE-670 Always-Incorrect Control Flow Implementation

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.9MEDIUMCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
3.1CNADECLARED6.9MEDIUMCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
Low

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA KDE Kleopatra affected 26.08.0 custom Windows

References

ReferenceSourceLinkTags
kde.org/info/security/advisory-20260408-1.txt [email protected] kde.org
commits.kde.org/kleopatra/73471abb92d99c56354adb582bfaec2764c22b79 [email protected] commits.kde.org
github.com/KDE/kleopatra/releases [email protected] github.com
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