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DEBIAN-CVE-2026-26103

Type: advisorySource: OSV1 source record

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.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-26103

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-26103

udisks2

Source reference: /affected/0/package/name

Affected versions
2.10.1-12.1

Source reference: /affected/0/versions

2.10.90-1

Source reference: /affected/0/versions

2.10.90-2

Source reference: /affected/0/versions

2.10.90-3

Source reference: /affected/0/versions

2.10.90-3.1

Source reference: /affected/0/versions

2.10.91-1

Source reference: /affected/0/versions

2.11.0-1

Source reference: /affected/0/versions

2.11.0-2

Source reference: /affected/0/versions

Fixed versions
2.11.1-1

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2.11.1-1"
          }
        ]
      }
    ],
    "package": {
      "name": "udisks2",
      "purl": "pkg:deb/debian/udisks2?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "2.10.1-12.1",
      "2.10.90-1",
      "2.10.90-2",
      "2.10.90-3",
      "2.10.90-3.1",
      "2.10.91-1",
      "2.11.0-1",
      "2.11.0-2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-26103.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#56678 · Revision 1
Added to Heist Feed
Publisher date
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