CVE-2026-26103

High

Description

A flaw was found in the udisks storage management daemon that exposes a privileged D-Bus API for restoring LUKS encryption headers without proper authorization checks. The issue allows a local unprivileged user to instruct the root-owned udisks daemon to overwrite encryption metadata on block devices. This can permanently invalidate encryption keys and render encrypted volumes inaccessible. Successful exploitation results in a denial-of-service condition through irreversible data loss.

SeverityHigh
CVSS7.1
Exploit probability0. percentile0.1%
ProductFreedesktop Udisks
PublishedFeb 25, 2026
First seenFeb 25, 2026

How to fix

Affected products

ProductAffected versionsFixed in
freedesktop udisks2.0.0—
redhat enterprise_linux10.0—

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