UBUNTU-CVE-2026-55889

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Source
https://ubuntu.com/security/CVE-2026-55889
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55889.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-55889
Upstream
Published
2026-10-26T00:00:00Z
Modified
2026-10-27T04:17:56Z
Severity
  • 8.3 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

XDG Desktop Portal is a desktop integration portal. Prior to version 1.22.1, malicious sandboxed applications can use the FileTransfer.RetrieveFiles method to redirect drag-and-drop and copy-paste data targeted at other applications to itself. Some portals generate tokens which provide access to resources. The sharing of the token transfers access to the resource and is supposed to happen out of band. The tokens were generated with g_random_int or g_uuid_string_random, both of which use GLib's GRand based on the Mersenne Twister PRNG which created a stream of reproducible random numbers. By generating enough tokens, the state of the GRand can be recover and with it, the next tokens can be predictedinsufin. This issue has been patched in version 1.22.1.

References

Affected packages

Ubuntu:16.04:LTS
xdg-desktop-portal

Package

Name
xdg-desktop-portal
Purl
pkg:deb/ubuntu/xdg-desktop-portal?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.0.3-0ubuntu0.0

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "xdg-desktop-portal",
            "binary_version":  "1.0.3-0ubuntu0.0"
        },
        {
            "binary_name":  "xdg-desktop-portal-tests",
            "binary_version":  "1.0.3-0ubuntu0.0"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55889.json"
Ubuntu:18.04:LTS
xdg-desktop-portal

Package

Name
xdg-desktop-portal
Purl
pkg:deb/ubuntu/xdg-desktop-portal?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.8-2
0.8-3
0.9-1
0.9-2
0.10-0ubuntu1
0.10-2
0.10-4
0.11-1
1.*
1.0.3-0ubuntu0.2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "xdg-desktop-portal",
            "binary_version":  "1.0.3-0ubuntu0.2"
        },
        {
            "binary_name":  "xdg-desktop-portal-tests",
            "binary_version":  "1.0.3-0ubuntu0.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55889.json"
Ubuntu:20.04:LTS
xdg-desktop-portal

Package

Name
xdg-desktop-portal
Purl
pkg:deb/ubuntu/xdg-desktop-portal?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.4.2-2
1.4.2-3
1.6.0-1
1.6.0-1ubuntu1
1.6.0-1ubuntu2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "xdg-desktop-portal",
            "binary_version":  "1.6.0-1ubuntu2"
        },
        {
            "binary_name":  "xdg-desktop-portal-tests",
            "binary_version":  "1.6.0-1ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55889.json"
Ubuntu:22.04:LTS
xdg-desktop-portal

Package

Name
xdg-desktop-portal
Purl
pkg:deb/ubuntu/xdg-desktop-portal?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.8.1-1build1
1.10.1-2
1.10.1-4
1.12.1-1
1.12.1-1build1
1.12.1-1ubuntu1
1.14.1-1
1.14.1-2
1.14.2-1
1.14.2-1ubuntu1
1.14.2-1ubuntu2
1.14.3-0ubuntu2
1.14.3-0ubuntu2.22.04.1
1.14.4-1ubuntu1~22.04.1
1.14.4-1ubuntu2~22.04.1
1.14.4-1ubuntu2~22.04.2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "xdg-desktop-portal",
            "binary_version":  "1.14.4-1ubuntu2~22.04.2"
        },
        {
            "binary_name":  "xdg-desktop-portal-tests",
            "binary_version":  "1.14.4-1ubuntu2~22.04.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55889.json"
Ubuntu:24.04:LTS
xdg-desktop-portal

Package

Name
xdg-desktop-portal
Purl
pkg:deb/ubuntu/xdg-desktop-portal?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.18.0-1ubuntu1
1.18.2-1ubuntu1
1.18.2-1ubuntu3
1.18.2-1ubuntu4
1.18.3-1ubuntu1
1.18.4-1ubuntu2
1.18.4-1ubuntu2.24.04.1
1.18.4-1ubuntu2.24.04.2
1.18.4-1ubuntu2.24.04.3

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "xdg-desktop-portal",
            "binary_version":  "1.18.4-1ubuntu2.24.04.3"
        },
        {
            "binary_name":  "xdg-desktop-portal-tests",
            "binary_version":  "1.18.4-1ubuntu2.24.04.3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55889.json"
Ubuntu:26.04:LTS
xdg-desktop-portal

Package

Name
xdg-desktop-portal
Purl
pkg:deb/ubuntu/xdg-desktop-portal?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.20.3+ds-1ubuntu1
1.20.3+ds-1ubuntu2
1.21.0+ds-1ubuntu3
1.21.0+ds-1ubuntu4
1.21.0+ds-1ubuntu6
1.21.0+ds-1ubuntu7
1.21.0+ds-1ubuntu8
1.21.1+ds-1ubuntu1
1.21.1+ds-1ubuntu2
1.21.1+ds-1ubuntu3
1.21.1+ds-1ubuntu3.1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "xdg-desktop-portal",
            "binary_version":  "1.21.1+ds-1ubuntu3.1"
        },
        {
            "binary_name":  "xdg-desktop-portal-tests",
            "binary_version":  "1.21.1+ds-1ubuntu3.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55889.json"
Ubuntu:26.10
xdg-desktop-portal

Package

Name
xdg-desktop-portal
Purl
pkg:deb/ubuntu/xdg-desktop-portal?arch=source&distro=stonking

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.21.1+ds-1ubuntu3
1.21.1+ds-1ubuntu4
1.21.1+ds-1ubuntu5
1.21.1+ds-1ubuntu6

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "xdg-desktop-portal",
            "binary_version":  "1.21.1+ds-1ubuntu6"
        },
        {
            "binary_name":  "xdg-desktop-portal-tests",
            "binary_version":  "1.21.1+ds-1ubuntu6"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55889.json"