HOMEVULNERABILITIESCVE-2026-26104
MEDIUM

CVE-2026-26104

CWE-862Published: February 25, 2026· Updated: Mar 2, 2026

5.5
CVSS v3.1
EPSS:0.01%probability of exploitation in 30 daysPercentile:0.4th

Official 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.

NVD Source

Technical Analysis

CVE-2026-26104 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 5.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected Vendors & Products

freedesktop1 product
udisks
Red Hat1 product
enterprise linux
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories

ADVISORYhttps://access.redhat.com/security/cve/CVE-2026-26104
ADVISORYhttps://bugzilla.redhat.com/show_bug.cgi?id=2433717

All References (3)

→
https://access.redhat.com/errata/RHSA-2026:3476
→
https://access.redhat.com/security/cve/CVE-2026-26104Vendor Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=2433717Issue Tracking · Vendor Advisory

Quick Facts

CVE IDCVE-2026-26104
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-862
CISA KEVNo
EPSS (30d)0.01%
Affected2 vendors
PublishedFeb 25, 2026

Related CVEs (CWE-862)

CVE-2025-30416
10.0
CVE-2026-34976
10.0
CVE-2026-0092
10.0
CVE-2026-33712
10.0
CVE-2026-2031
10.0
CVE-2026-46425
9.9

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-26104 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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