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CVE-2026-26104

19
FAUCET Score

CVE-2026-26104 is a medium-severity flaw in the udisks storage management daemon affecting freedesktop and Red Hat Enterprise Linux products. It allows unprivileged users to bypass authorization and back up LUKS encryption headers due to a missing policy check in a privileged D-Bus method. This vulnerability has a CVSS score of 5.5, indicating a local attack vector with low complexity, and primarily impacts the confidentiality of encrypted storage volumes. There is no evidence of active exploitation, public exploit code, or inclusion in the CISA KEV catalog, though it has received some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
10.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:freedesktop:udisks:2.0.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.07%
Probability of exploitation in next 30 days
EPSS Percentile
0.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0008 is in the 1st percentile among its peer group of 15,940 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (2)

redhatvendor investigatingvia nvd_reference
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 10Fixed in: udisks2

Vendor Advisories (1)

redhatCVE-2026-26104Moderate

udisks: Missing Authorization Check Allows Unprivileged Users to Back Up LUKS Headers via udisks D-Bus API

Feb 25, 2026

References

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