CVE-2026-26103

HIGH EPSS 0.1%
Published Feb 25, 20264mo ago · Modified Jun 17, 20261w ago
7.1 CVSS 3.1
High
Find Similar
Published Feb 25, 2026 4mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
7.1
Exploitability
1.8
Impact
5.2
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
0.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-862 Missing Authorization Authorization

Affected Products 2

VendorProductVersionRange
redhatenterprise_linux10.0any
freedesktopudisks2.0.0any

References 5

  • access.redhat.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
  • bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2433719
    Issue TrackingVendor Advisory
  • github.com https://github.com/storaged-project/udisks/security/advisories/GHSA-c75h-phf8-ccjm

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.