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. 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.

References

Affected packages

Git / github.com/storaged-project/udisks

Affected ranges

Type

GIT

Repo

https://github.com/storaged-project/udisks

Events

Introduced

Last affected

414618e6c61f2a207f7e40830632ff331df245c9

Database specific

{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.0.0"
        }
    ]
}

Affected versions

storaged-2.*

storaged-2.0.0

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-26103.json"

unresolved_ranges

[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.0"
            }
        ]
    }
]