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.

INFO

Published Date :

2026-02-25T10:31:50.913Z

Last Modified :

2026-03-25T18:52:14.387Z

Source :

redhat
AFFECTED PRODUCTS

The following products are affected by CVE-2026-26103 vulnerability.

Vendors Products
Freedesktop
  • Udisks
Redhat
  • Enterprise Linux
  • Enterprise Linux Eus
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-26103.

URL Resource
https://access.redhat.com/errata/RHSA-2026:3476 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2026:5831 cve-icon cve-icon
https://access.redhat.com/security/cve/CVE-2026-26103 cve-icon cve-icon
https://bugzilla.redhat.com/show_bug.cgi?id=2433719 cve-icon cve-icon
https://github.com/storaged-project/udisks/security/advisories/GHSA-c75h-phf8-ccjm cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-26103 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-26103 cve-icon
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CVSS Vulnerability Scoring System

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