UBUNTU-CVE-2026-91837

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Source
https://ubuntu.com/security/CVE-2026-91837
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91837.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-91837
Upstream
  • CVE-2026-91837
Published
2026-09-25T17:17:00Z
Modified
2026-10-01T00:22:35Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A flaw was found in NetworkManager-iodine, the iodine VPN plugin for NetworkManager. A local unprivileged user can exploit a vulnerability in how the 'nameserver' setting is processed when establishing an iodine VPN connection. By embedding shell metacharacters (special characters that can execute commands) in the 'nameserver' value, an attacker can inject and execute arbitrary commands. These commands run with root privileges before the application drops its elevated permissions, leading to local privilege escalation.

References

Affected packages

Ubuntu:16.04:LTS
network-manager-iodine

Package

Name
network-manager-iodine
Purl
pkg:deb/ubuntu/network-manager-iodine?arch=source&distro=xenial

Affected ranges

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

Affected versions

0.*
0.0.5-1ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "network-manager-iodine",
            "binary_version": "0.0.5-1ubuntu1"
        },
        {
            "binary_name": "network-manager-iodine-gnome",
            "binary_version": "0.0.5-1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91837.json"
Ubuntu:18.04:LTS
network-manager-iodine

Package

Name
network-manager-iodine
Purl
pkg:deb/ubuntu/network-manager-iodine?arch=source&distro=bionic

Affected ranges

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

Affected versions

1.*
1.2.0-1
1.2.0-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "network-manager-iodine",
            "binary_version": "1.2.0-3"
        },
        {
            "binary_name": "network-manager-iodine-gnome",
            "binary_version": "1.2.0-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91837.json"
Ubuntu:20.04:LTS
network-manager-iodine

Package

Name
network-manager-iodine
Purl
pkg:deb/ubuntu/network-manager-iodine?arch=source&distro=focal

Affected ranges

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

Affected versions

1.*
1.2.0-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "network-manager-iodine",
            "binary_version": "1.2.0-3"
        },
        {
            "binary_name": "network-manager-iodine-gnome",
            "binary_version": "1.2.0-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91837.json"
Ubuntu:22.04:LTS
network-manager-iodine

Package

Name
network-manager-iodine
Purl
pkg:deb/ubuntu/network-manager-iodine?arch=source&distro=jammy

Affected ranges

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

Affected versions

1.*
1.2.0-3ubuntu1
1.2.0-3.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "network-manager-iodine",
            "binary_version": "1.2.0-3.1"
        },
        {
            "binary_name": "network-manager-iodine-gnome",
            "binary_version": "1.2.0-3.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91837.json"
Ubuntu:24.04:LTS
network-manager-iodine

Package

Name
network-manager-iodine
Purl
pkg:deb/ubuntu/network-manager-iodine?arch=source&distro=noble

Affected ranges

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

Affected versions

1.*
1.2.0-3.2
1.2.0-3.3
1.2.0-3.3build1
1.2.0-3.3build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "network-manager-iodine",
            "binary_version": "1.2.0-3.3build2"
        },
        {
            "binary_name": "network-manager-iodine-gnome",
            "binary_version": "1.2.0-3.3build2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91837.json"
Ubuntu:26.04:LTS
network-manager-iodine

Package

Name
network-manager-iodine
Purl
pkg:deb/ubuntu/network-manager-iodine?arch=source&distro=resolute

Affected ranges

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

Affected versions

1.*
1.2.0-3.3build2
1.2.0-3.3build3
1.2.0-3.4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "network-manager-iodine",
            "binary_version": "1.2.0-3.4"
        },
        {
            "binary_name": "network-manager-iodine-gnome",
            "binary_version": "1.2.0-3.4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91837.json"