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.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 2
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Redhat Enterprise_Linux
cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*
|
— | — |
|
Freedesktop Udisks
cpe:2.3:a:freedesktop:udisks:2.0.0:*:*:*:*:*:*:*
|
— | — |
References 4
https://access.redhat.com/security/cve/CVE-2026-26104
secalert@redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2433717
secalert@redhat.com
https://access.redhat.com/errata/RHSA-2026:3476
secalert@redhat.com
https://github.com/storaged-project/udisks/security/advisories/GHSA-fcvx-497g-6…
secalert@redhat.com