CVEvulnerability
CVE-2026-26103
7.1 HIGH
Official page ↗
- Status
- Modified
- Published
- 2026-02-25
- Last modified
- 2026-07-15
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.1 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
- 7.1 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- Weaknesses
- CWE-862
Description
A flaw was found in the udisks storage management daemon that exposes a privileged D-Bus API for restoring LUKS encryption headers without proper authorization checks. The issue allows a local unprivileged user to instruct the root-owned udisks daemon to overwrite encryption metadata on block devices. This can permanently invalidate encryption keys and render encrypted volumes inaccessible. Successful exploitation results in a denial-of-service condition through irreversible data loss.
Affected configurations
• redhat enterprise linux 10.0
• freedesktop udisks 2.0.0
Related
Weakness · CWE (1)
- CWE-862 Missing Authorization weakness
References
- https://access.redhat.com/errata/RHSA-2026:3476 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:5831 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-26103 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2433719 Issue Tracking, Vendor Advisory
- https://github.com/storaged-project/udisks/security/advisories/GHSA-c75h-phf8-ccjm github.com
- https://access.redhat.com/errata/RHSA-2026:3476 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:5831 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-26103 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2433719 Issue Tracking, Vendor Advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-26103.json security.access.redhat.com