CVE-2026-26103

Public on 2026-02-25
Modified on 2026-02-28
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.
Severity
Important severity
Important
See what this means
CVSS v3 Base Score
7.1
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Core udisks2 Not Affected
Amazon Linux 2023 udisks2 Not Affected

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H