Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Enterprise Linux | 10.0 |
| Freedesktop | Udisks | 2.0.0 |
Related Weaknesses (CWE)
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 TrackingVendor Advisory
- https://github.com/storaged-project/udisks/security/advisories/GHSA-fcvx-497g-6x
FAQ
What is CVE-2026-26104?
CVE-2026-26104 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 res...
How severe is CVE-2026-26104?
CVE-2026-26104 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-26104?
Check the references section above for vendor advisories and patch information. Affected products include: Redhat Enterprise Linux, Freedesktop Udisks.