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CVE-2026-26103

Udisks: missing authorization check allows unprivileged users to restore luks headers via udisks d-bus api

Published: Feb 25, 2026Updated: Jul 15, 2026 Sources: CVE List NVDCWE-862
7.1HIGH
NVD MITRE
EPSS Score
0.1%
Top 99.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:NI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-862

Affected Products

Red Hat
commercial·USaka redhat
Red Hat Enterprise Linux 10On-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 10.0 Extended Update SupportOn-premOS
Operating Systems / linux-distro
freedesktop
oss-projectaka freedesktop.org
udisks
OSS Libraries
and 5 more affected products View all →

Exploitability

Official Patch Available
Workaround Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

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
access.redhat.com
and 3 more references View all →

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