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Vulnerabilities CVE-2026-26103

CVE-2026-26103

High
Open
TLP:CLEAR

Udisks: missing authorization check allows unprivileged users to restore luks headers via udisks d-bus api

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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.

Details

CVSS Score
7.1
EPSS Score
0.08%

0.1th percentile

CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Confidence
90%
Published
Feb 25, 2026
Last Modified
Jul 15, 2026
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