USN-8806-1

It was discovered that NetworkManager did not properly restrict the ca-path and phase2-ca-path certificate authority settings for private (single-user) 802.1X network connections. An attacker could use this issue to point their own private 802.1X connection profile at a directory under their control, causing NetworkManager to trust an attacker-chosen certificate authority and potentially exposing network credentials via a rogue authentication server.

References

Affected packages

Ubuntu:26.04:LTS / network-manager

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

1.54.3-2ubuntu3.1

Affected versions

1.*

1.52.0-1ubuntu3

1.52.0-1ubuntu4

1.54.2-2ubuntu1

1.54.2-2ubuntu2

1.54.3-2ubuntu1

1.54.3-2ubuntu2

1.54.3-2ubuntu3

Ecosystem specific

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "gir1.2-nm-1.0",
            "binary_version":  "1.54.3-2ubuntu3.1"
        },
        {
            "binary_name":  "libnm0",
            "binary_version":  "1.54.3-2ubuntu3.1"
        },
        {
            "binary_name":  "network-manager",
            "binary_version":  "1.54.3-2ubuntu3.1"
        },
        {
            "binary_name":  "network-manager-config-connectivity-debian",
            "binary_version":  "1.54.3-2ubuntu3.1"
        },
        {
            "binary_name":  "network-manager-config-connectivity-ubuntu",
            "binary_version":  "1.54.3-2ubuntu3.1"
        },
        {
            "binary_name":  "network-manager-l10n",
            "binary_version":  "1.54.3-2ubuntu3.1"
        }
    ]
}

Database specific

cves_map

{
    "cves":  [
        {
            "id":  "CVE-2026-19685",
            "severity":  [
                {
                    "score":  "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "medium",
                    "type":  "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem":  "Ubuntu:26.04:LTS"
}

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8806-1.json"