medium5.5
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.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Redhat | Enterprise Linux | Version 10.0 |
| Freedesktop | Udisks | Version 2.0.0 |
Weakness classification
References
- NVD record
- CVE.org record
- https://access.redhat.com/errata/RHSA-2026:3476
- https://access.redhat.com/errata/RHSA-2026:5831
- https://access.redhat.com/security/cve/CVE-2026-26104
- https://bugzilla.redhat.com/show_bug.cgi?id=2433717
- https://github.com/storaged-project/udisks/security/advisories/GHSA-fcvx-497g-6xmw