Vulnerability · CVE-2026-26103
A flaw was found in the udisks storage management daemon that exposes a privileged D-Bus API for restoring LUKS encryption headers without proper authorization checks.
Published Feb 25, 2026 · catalog updated Jul 15, 2026 · enterprise linux
Check if you run it
No confirmed exploitation is on record for CVE-2026-26103. EPSS is 0.11%. Act only if a listed version of enterprise linux is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- High7.1
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.11%
- Remediation
- Advisory link
- Affected products
- cpe freedesktop/udisks · cpe redhat/enterprise linux
A flaw was found in the udisks storage management daemon that exposes a privileged D-Bus API for restoring LUKS encryption headers without proper authorization checks. The issue allows a local unprivileged user to instruct the root-owned udisks daemon to overwrite encryption metadata on block devices. This can permanently invalidate encryption keys and render encrypted volumes inaccessible. Successful exploitation results in a denial-of-service condition through irreversible data loss.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- cpe freedesktop/udisks2.0.0
- cpe redhat/enterprise linux10.0
How to fix CVE-2026-26103
Recommended remediation
A patch or advisory reference is linked. Open the original publisher for availability by product version.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-26103. EPSS is 0.11%. Act only if a listed version of enterprise linux is installed.
Which versions are affected?
Compare what you have installed with redhat/enterprise linux 10.0. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-862: Missing Authorization. EPSS 0.11%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
Timeline
Detection, updates, and resolution for this record.
Feb 25, 2026 · NIST NVD
Detected
A flaw was found in the udisks storage management daemon that exposes a privileged D-Bus API for restoring LUKS encryption headers without proper authorization checks. The issue allows a local unprivileged user to instruct the root-owned udisks daemon to overwrite encryption metadata on block devices. This can permanently invalidate encryption keys and render encrypted volumes inaccessible. Succes
Jul 15, 2026 · NIST NVD
Updated
A flaw was found in the udisks storage management daemon that exposes a privileged D-Bus API for restoring LUKS encryption headers without proper authorization checks. The issue allows a local unprivileged user to instruct the root-owned udisks daemon to overwrite encryption metadata on block devices. This can permanently invalidate encryption keys and render encrypted volumes inaccessible. Succes
Sources
- CVE.orgVulnerability recordCVE-2026-26103
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-26103
30-day exploitation probability 0.1%
first.org - NIST NVDVulnerability recordCVE-2026-26103
A flaw was found in the udisks storage management daemon that exposes a privileged D-Bus API for restoring LUKS encryption headers without proper authorization checks. The issue allows a local unprivileged user to instruct the root-owned udisks daemon to overwrite encryption meta
nvd.nist.gov
References
Freshness
Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.