CVE-2026-26104
MEDIUMRed Hat Enterprise Linux - Unauthenticated LUKS Encryption Header Backup via udisks D-Bus Method
Title source: llmDescription
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.
References (5)
Core 5
Core References
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2026:3476
Vendor Advisory vendor-advisory
x_refsource_redhat
RHSA-2026:5831
https://access.redhat.com/errata/RHSA-2026:5831
Vendor Advisory vdb-entry
x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2026-26104
Vendor Advisory issue-tracking
x_refsource_redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2433717
Scores
CVSS v3
5.5
EPSS
0.0001
EPSS Percentile
1.5%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-862
Status
published
Products (8)
freedesktop/udisks
2.0.0
Red Hat/Red Hat Enterprise Linux 10
0:2.10.90-6.el10_1.1
Red Hat/Red Hat Enterprise Linux 10.0 Extended Update Support
0:2.10.90-5.el10_0.2
Red Hat/Red Hat Enterprise Linux 6
Red Hat/Red Hat Enterprise Linux 7
Red Hat/Red Hat Enterprise Linux 8
Red Hat/Red Hat Enterprise Linux 9
redhat/enterprise_linux
10.0
Published
Feb 25, 2026
Tracked Since
Feb 25, 2026