CVE-2026-26104

Name: CVE-2026-26104
Creator: NVD / NIST
Published: 2026-02-25T11:16:03.193+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.07%

Last modified Jun 17, 2026

CVE-2026-26104 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A flaw was found in the udisks storage management daemon that allows unprivileged users to back up LUKS encryption headers without authorization. The issue occurs because a privileged D-Bus method responsible for exporting encryption metadata does not perform a policy check. EPSS estimates a 0.07% chance of exploitation in the next 30 days.

Description

A flaw was found in the udisks storage management daemon that allows unprivileged users to back up LUKS encryption headers without authorization. The issue occurs because a privileged D-Bus method responsible for exporting encryption metadata does not perform a policy check. As a result, sensitive cryptographic metadata can be read and written to attacker-controlled locations. This weakens the confidentiality guarantees of encrypted storage volumes.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

0.07%

0.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-862

Affected Software

Vendor	Product	Versions
Redhat	Enterprise Linux	10.0
Freedesktop	Udisks	2.0.0

References

https://access.redhat.com/errata/RHSA-2026:3476
https://access.redhat.com/errata/RHSA-2026:5831
https://access.redhat.com/security/cve/CVE-2026-26104Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2433717Issue Tracking, Vendor Advisory
https://github.com/storaged-project/udisks/security/advisories/GHSA-fcvx-497g-6xmw

Timeline

Published: Feb 25, 2026
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2026-26104?

How severe is CVE-2026-26104?

CVE-2026-26104 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.07% probability of exploitation in the next 30 days.

How do I fix CVE-2026-26104?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-26104?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST