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.
History

Wed, 25 Feb 2026 10:45:00 +0000

Type Values Removed Values Added
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.
Title Udisks: missing authorization check allows unprivileged users to restore luks headers via udisks d-bus api
First Time appeared Redhat
Redhat enterprise Linux
Weaknesses CWE-862
CPEs cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-02-25T10:31:50.913Z

Reserved: 2026-02-11T12:48:26.436Z

Link: CVE-2026-26103

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-02-25T11:16:02.983

Modified: 2026-02-25T11:16:02.983

Link: CVE-2026-26103

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.