USN-8806-1 (UBUNTU-CVE-2026-19685)

Vulnerability from osv_ubuntu – Published: 2026-09-23 13:24 – Updated: 2026-09-23 13:24 – Source website
VLAI
Summary
network-manager vulnerability
Details

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
To clipboard 

{
  "affected": [
    {
      "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"
        }
      },
      "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"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "network-manager",
        "purl": "pkg:deb/ubuntu/network-manager@1.54.3-2ubuntu3.1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.54.3-2ubuntu3.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "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"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that NetworkManager did not properly restrict the\nca-path and phase2-ca-path certificate authority settings for private\n(single-user) 802.1X network connections. An attacker could use this issue\nto point their own private 802.1X connection profile at a directory under\ntheir control, causing NetworkManager to trust an attacker-chosen\ncertificate authority and potentially exposing network credentials via a\nrogue authentication server.",
  "id": "USN-8806-1",
  "modified": "2026-09-23T13:24:45Z",
  "published": "2026-09-23T13:24:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8806-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-19685"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "network-manager vulnerability",
  "upstream": [
    "UBUNTU-CVE-2026-19685"
  ]
}



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