A flaw was found in the udisks storage management daemon that allows unprivileged users to back up LUKS encryption headers without authorization. The issue occurs because a privileged D-Bus method responsible for exporting encryption metadata does not perform a policy check. As a result, sensitive cryptographic metadata can be read and written to attacker-controlled locations. This weakens the confidentiality guarantees of encrypted storage volumes.
History

Fri, 27 Feb 2026 03:30:00 +0000

Type Values Removed Values Added
First Time appeared Freedesktop
Freedesktop udisks
CPEs cpe:2.3:a:freedesktop:udisks:2.0.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*
Vendors & Products Freedesktop
Freedesktop udisks

Wed, 25 Feb 2026 22:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 25 Feb 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Wed, 25 Feb 2026 11:00:00 +0000

Type Values Removed Values Added
Description A flaw was found in the udisks storage management daemon that allows unprivileged users to back up LUKS encryption headers without authorization. The issue occurs because a privileged D-Bus method responsible for exporting encryption metadata does not perform a policy check. As a result, sensitive cryptographic metadata can be read and written to attacker-controlled locations. This weakens the confidentiality guarantees of encrypted storage volumes.
Title Udisks: missing authorization check allows unprivileged users to back up 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': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-02-25T20:49:19.895Z

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

Link: CVE-2026-26104

cve-icon Vulnrichment

Updated: 2026-02-25T20:49:14.628Z

cve-icon NVD

Status : Analyzed

Published: 2026-02-25T11:16:03.193

Modified: 2026-02-27T03:27:05.453

Link: CVE-2026-26104

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-02-25T06:00:00Z

Links: CVE-2026-26104 - Bugzilla