Unprivileged Access Flaw in udisks Storage Management Daemon for Red Hat Products
CVE-2026-26104

5.5MEDIUM

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 10.0 Extended Update Support
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Vendor
CVE Published:
25 February 2026

What is CVE-2026-26104?

A vulnerability exists in the udisks storage management daemon that permits unprivileged users to access and back up LUKS encryption headers without proper authorization checks. This flaw arises due to a privileged D-Bus method that fails to enforce appropriate policy checks, allowing sensitive cryptographic metadata to be exposed. As a result, attackers can potentially read and manipulate this information, thereby undermining the security and confidentiality of encrypted storage volumes.

Affected Version(s)

Red Hat Enterprise Linux 10 0:2.10.90-6.el10_1.1

Red Hat Enterprise Linux 10.0 Extended Update Support 0:2.10.90-5.el10_0.2

References

https://access.redhat.com/errata/RHSA-2026:3476
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:5831
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-26104
vdb-entryx_refsource_REDHAT

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Red Hat would like to thank Asim Viladi Oglu Manizada for reporting this issue.
.