CVE-2026-26103

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.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/errata/RHSA-2026:3476
https://access.redhat.com/errata/RHSA-2026:5831
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

Configurations

Configuration 1 (hide)

cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:a:freedesktop:udisks:2.0.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-02-25 11:16

Updated : 2026-03-25 19:16

NVD link : CVE-2026-26103

Mitre link : CVE-2026-26103

CVE.ORG link : CVE-2026-26103

JSON object : View

Products Affected

freedesktop

udisks

redhat

enterprise_linux

CWE

CWE-862

Missing Authorization

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