CVE-2026-26104
mediumA flaw was found in the udisks storage management daemon that allows unprivileged users to back up LUKS encryption headers without authorization.
Vendor / product: Redhat — enterprise linux
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
5.5
5.5 (CVSS v3.1)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Severity source: NVD CVSS v3.1 (secalert@redhat.com)
Timeline (UTC)
Published: 2026-02-25 11:16
Modified: 2026-11-05 20:17
NVD status: Modified
Last synced 3 hours ago
Verified against the source API 2026-11-05 20:22 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
redhat / enterprise_linux 10.0
freedesktop / udisks 2.0.0
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Vendor advisory: https://access.redhat.com/security/cve/CVE-2026-26104
Vendor advisory: https://bugzilla.redhat.com/show_bug.cgi?id=2433717
References
- https://access.redhat.com/errata/RHSA-2026:3476 secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:5831 secalert@redhat.com
- 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://github.com/storaged-project/udisks/security/advisories/GHSA-fcvx-497g-6xmw secalert@redhat.com
Data sources
NVD CVE API 2.0 — fetched 2026-11-05 20:22 UTC · record ↗