CVE-2026-26103: Freedesktop Udisks

High severity, CVSS 7.1. EPSS: 0.1% chance of exploitation in the next 30 days.

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.

Affected products

• Freedesktop Udisks: version 2.0.0 only
• Red Hat Enterprise Linux: version 10.0 only

Published 2026-02-25. Last modified 2026-07-15.