Medium 5.5Published Feb 25, 2026

CVE-2026-26104Udisks: missing authorization check allows unprivileged users to back up luks headers via udisks d-bus api

Updated under an hour ago (Oct 27, 2026, 5:23 PM ET)

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It affects Red Hat Enterprise Linux 10 and 2 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Red Hat Enterprise Linux 10

Exploited in the last 30 days

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.

CVSS: 5.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-862
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: redhat
NVD analysis: Modified
Record last updated: Mar 25, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux	from 0:2.10.90-6.el10_1.1 not affected	CNA record
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support redhat:enterprise_linux_eus	from 0:2.10.90-5.el10_0.2 not affected	CNA record
redhat enterprise_linux redhat:enterprise_linux	10.0	NVD
freedesktop udisks freedesktop:udisks	2.0.0	NVD

References

References

https://access.redhat.com/errata/RHSA-2026:3476	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:5831	vendor-advisory, x-refsource-redhat
https://access.redhat.com/security/cve/CVE-2026-26104	vdb-entry, x-refsource-redhat, vendor-advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2433717	issue-tracking, x-refsource-redhat, vendor-advisory
https://github.com/storaged-project/udisks/security/advisories/GHSA-fcvx-497g-6xmw

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.