CVE-2026-26104
A flaw was found in the udisks storage management daemon that allows unprivileged users to back up LUKS encryption headers without authorization.
Does this matter?
Lower severity and a low EPSS score (0.07%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.07% probability · 0th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-862
- Affected
- redhat/enterprise linux · freedesktop/udisks
- Source
- secalert@redhat.com
References
- https://access.redhat.com/errata/RHSA-2026:3476
- https://access.redhat.com/errata/RHSA-2026:5831
- https://access.redhat.com/security/cve/CVE-2026-26104Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2433717Issue Tracking, Vendor Advisory
- https://github.com/storaged-project/udisks/security/advisories/GHSA-fcvx-497g-6xmw
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.