UBUNTU-CVE-2026-7867

A flaw was found in udisks2. A local attacker with an active console session can exploit insufficient authorization checking on the 'as-user' option in the org.freedesktop.UDisks2.Filesystem.Mount() D-Bus method. This allows the attacker to spoof the 'as-user' parameter, mounting filesystems on behalf of arbitrary users, including privileged accounts. This can lead to local privilege escalation through mount point injection and manipulation of the mount namespace visible to privileged users.

References

Affected packages

Ubuntu:24.04:LTS / udisks2

Package

Name: udisks2
Purl: pkg:deb/ubuntu/udisks2?arch=source&distro=noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

2.10.1-6ubuntu1.5

Affected versions

2.*

2.10.1-1ubuntu1

2.10.1-1ubuntu2

2.10.1-6

2.10.1-6build1

2.10.1-6ubuntu1

2.10.1-6ubuntu1.2

2.10.1-6ubuntu1.3

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "gir1.2-udisks-2.0",
            "binary_version": "2.10.1-6ubuntu1.5"
        },
        {
            "binary_name": "libudisks2-0",
            "binary_version": "2.10.1-6ubuntu1.5"
        },
        {
            "binary_name": "udisks2",
            "binary_version": "2.10.1-6ubuntu1.5"
        },
        {
            "binary_name": "udisks2-btrfs",
            "binary_version": "2.10.1-6ubuntu1.5"
        },
        {
            "binary_name": "udisks2-lvm2",
            "binary_version": "2.10.1-6ubuntu1.5"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-7867.json"

Ubuntu:26.04:LTS / udisks2

Package

Name: udisks2
Purl: pkg:deb/ubuntu/udisks2?arch=source&distro=resolute

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

2.10.91-1ubuntu2.1

Affected versions

2.*

2.10.1-12.1ubuntu2

2.10.91-1ubuntu1

2.10.91-1ubuntu2

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "gir1.2-udisks-2.0",
            "binary_version": "2.10.91-1ubuntu2.1"
        },
        {
            "binary_name": "libudisks2-0",
            "binary_version": "2.10.91-1ubuntu2.1"
        },
        {
            "binary_name": "udisks2",
            "binary_version": "2.10.91-1ubuntu2.1"
        },
        {
            "binary_name": "udisks2-btrfs",
            "binary_version": "2.10.91-1ubuntu2.1"
        },
        {
            "binary_name": "udisks2-lvm2",
            "binary_version": "2.10.91-1ubuntu2.1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-7867.json"