Unrated

UBUNTU-CVE-2026-19816

Type: withdrawalSource: OSV1 source record

A flaw was found in PackageKit. PackageKit skips the polkit authorization check for transactions carrying the SIMULATE (dry-run) flag. In the dnf5 backend, the RepoRemove handler ignores that contract and always executes the real transaction because its guard is written as (role == REPO_REMOVE || !SIMULATE), which is always true for RepoRemove. An unprivileged local user can therefore perform a genuine package uninstall while claiming to simulate. This vulnerability only affects systems using PackageKit with the dnf5 backend.

Announced 14 Sept 2026Source revision 1

Original source ↗

UBUNTU-CVE-2026-19816

Primary source · Revision 1 · Withdrawn

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:UBUNTU-CVE-2026-19816

packagekit

Source reference: /affected/0/package/name

Affected versions: 0.8.17-4ubuntu6~gcc5.3
Source reference: /affected/0/versions
0.8.17-4ubuntu6~gcc5.4ubuntu1
Source reference: /affected/0/versions
0.8.17-4ubuntu6~gcc5.4ubuntu1.1
Source reference: /affected/0/versions
0.8.17-4ubuntu6~gcc5.4ubuntu1.2
Source reference: /affected/0/versions
0.8.17-4ubuntu6~gcc5.4ubuntu1.3
Source reference: /affected/0/versions
0.8.17-4ubuntu6~gcc5.4ubuntu1.4
Source reference: /affected/0/versions
0.8.17-4ubuntu6~gcc5.4ubuntu1.5
Source reference: /affected/0/versions
0.8.17-4ubuntu6~gcc5.4ubuntu1.5+esm1
Source reference: /affected/0/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

packagekit

Source reference: /affected/1/package/name

Affected versions: 1.1.7-1
Source reference: /affected/1/versions
1.1.9-1
Source reference: /affected/1/versions
1.1.9-1ubuntu1
Source reference: /affected/1/versions
1.1.9-1ubuntu2
Source reference: /affected/1/versions
1.1.9-1ubuntu2.18.04.1
Source reference: /affected/1/versions
1.1.9-1ubuntu2.18.04.3
Source reference: /affected/1/versions
1.1.9-1ubuntu2.18.04.4
Source reference: /affected/1/versions
1.1.9-1ubuntu2.18.04.5
Source reference: /affected/1/versions
1.1.9-1ubuntu2.18.04.6
Source reference: /affected/1/versions
1.1.9-1ubuntu2.18.04.6+esm1
Source reference: /affected/1/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

packagekit

Source reference: /affected/2/package/name

Affected versions: 1.1.12-5ubuntu4
Source reference: /affected/2/versions
1.1.13-1
Source reference: /affected/2/versions
1.1.13-2
Source reference: /affected/2/versions
1.1.13-2build1
Source reference: /affected/2/versions
1.1.13-2ubuntu1
Source reference: /affected/2/versions
1.1.13-2ubuntu1.1
Source reference: /affected/2/versions
1.1.13-2ubuntu1.1+esm1
Source reference: /affected/2/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

packagekit

Source reference: /affected/3/package/name

Affected versions: 1.2.2-2ubuntu3
Source reference: /affected/3/versions
1.2.4-1ubuntu1
Source reference: /affected/3/versions
1.2.4-1ubuntu2
Source reference: /affected/3/versions
1.2.5-1ubuntu1
Source reference: /affected/3/versions
1.2.5-2ubuntu1
Source reference: /affected/3/versions
1.2.5-2ubuntu2
Source reference: /affected/3/versions
1.2.5-2ubuntu3
Source reference: /affected/3/versions
1.2.5-2ubuntu3.1
Source reference: /affected/3/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

packagekit

Source reference: /affected/4/package/name

Affected versions: 1.2.7-1
Source reference: /affected/4/versions
1.2.8-1
Source reference: /affected/4/versions
1.2.8-1build1
Source reference: /affected/4/versions
1.2.8-2
Source reference: /affected/4/versions
1.2.8-2build2
Source reference: /affected/4/versions
1.2.8-2build3
Source reference: /affected/4/versions
1.2.8-2ubuntu1
Source reference: /affected/4/versions
1.2.8-2ubuntu1.1
Source reference: /affected/4/versions
1.2.8-2ubuntu1.2
Source reference: /affected/4/versions
1.2.8-2ubuntu1.4
Source reference: /affected/4/versions
1.2.8-2ubuntu1.5
Source reference: /affected/4/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

packagekit

Source reference: /affected/5/package/name

Affected versions: 1.3.1-1
Source reference: /affected/5/versions
1.3.2-1
Source reference: /affected/5/versions
1.3.3-1
Source reference: /affected/5/versions
1.3.4-1
Source reference: /affected/5/versions
1.3.4-3
Source reference: /affected/5/versions
1.3.4-3ubuntu1
Source reference: /affected/5/versions
1.3.4-3ubuntu1.1
Source reference: /affected/5/versions
1.3.4-3ubuntu1.2
Source reference: /affected/5/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "packagekit",
      "purl": "pkg:deb/ubuntu/packagekit?arch=source&distro=esm-infra%2Fxenial",
      "ecosystem": "Ubuntu:Pro:16.04:LTS"
    },
    "versions": [
      "0.8.17-4ubuntu6~gcc5.3",
      "0.8.17-4ubuntu6~gcc5.4ubuntu1",
      "0.8.17-4ubuntu6~gcc5.4ubuntu1.1",
      "0.8.17-4ubuntu6~gcc5.4ubuntu1.2",
      "0.8.17-4ubuntu6~gcc5.4ubuntu1.3",
      "0.8.17-4ubuntu6~gcc5.4ubuntu1.4",
      "0.8.17-4ubuntu6~gcc5.4ubuntu1.5",
      "0.8.17-4ubuntu6~gcc5.4ubuntu1.5+esm1"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19816.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "gir1.2-packagekitglib-1.0",
          "binary_version": "0.8.17-4ubuntu6~gcc5.4ubuntu1.5+esm1"
        },
        {
          "binary_name": "gstreamer1.0-packagekit",
          "binary_version": "0.8.17-4ubuntu6~gcc5.4ubuntu1.5+esm1"
        },
        {
          "binary_name": "libpackagekit-glib2-16",
          "binary_version": "0.8.17-4ubuntu6~gcc5.4ubuntu1.5+esm1"
        },
        {
          "binary_name": "packagekit",
          "binary_version": "0.8.17-4ubuntu6~gcc5.4ubuntu1.5+esm1"
        },
        {
          "binary_name": "packagekit-backend-aptcc",
          "binary_version": "0.8.17-4ubuntu6~gcc5.4ubuntu1.5+esm1"
        },
        {
          "binary_name": "packagekit-backend-smart",
          "binary_version": "0.8.17-4ubuntu6~gcc5.4ubuntu1.5+esm1"
        },
        {
          "binary_name": "packagekit-docs",
          "binary_version": "0.8.17-4ubuntu6~gcc5.4ubuntu1.5+esm1"
        },
        {
          "binary_name": "packagekit-gtk3-module",
          "binary_version": "0.8.17-4ubuntu6~gcc5.4ubuntu1.5+esm1"
        },
        {
          "binary_name": "packagekit-tools",
          "binary_version": "0.8.17-4ubuntu6~gcc5.4ubuntu1.5+esm1"
        },
        {
          "binary_name": "python3-packagekit",
          "binary_version": "0.8.17-4ubuntu6~gcc5.4ubuntu1.5+esm1"
        }
      ]
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "packagekit",
      "purl": "pkg:deb/ubuntu/packagekit?arch=source&distro=esm-infra%2Fbionic",
      "ecosystem": "Ubuntu:Pro:18.04:LTS"
    },
    "versions": [
      "1.1.7-1",
      "1.1.9-1",
      "1.1.9-1ubuntu1",
      "1.1.9-1ubuntu2",
      "1.1.9-1ubuntu2.18.04.1",
      "1.1.9-1ubuntu2.18.04.3",
      "1.1.9-1ubuntu2.18.04.4",
      "1.1.9-1ubuntu2.18.04.5",
      "1.1.9-1ubuntu2.18.04.6",
      "1.1.9-1ubuntu2.18.04.6+esm1"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19816.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "gir1.2-packagekitglib-1.0",
          "binary_version": "1.1.9-1ubuntu2.18.04.6+esm1"
        },
        {
          "binary_name": "gstreamer1.0-packagekit",
          "binary_version": "1.1.9-1ubuntu2.18.04.6+esm1"
        },
        {
          "binary_name": "libpackagekit-glib2-18",
          "binary_version": "1.1.9-1ubuntu2.18.04.6+esm1"
        },
        {
          "binary_name": "packagekit",
          "binary_version": "1.1.9-1ubuntu2.18.04.6+esm1"
        },
        {
          "binary_name": "packagekit-command-not-found",
          "binary_version": "1.1.9-1ubuntu2.18.04.6+esm1"
        },
        {
          "binary_name": "packagekit-docs",
          "binary_version": "1.1.9-1ubuntu2.18.04.6+esm1"
        },
        {
          "binary_name": "packagekit-gtk3-module",
          "binary_version": "1.1.9-1ubuntu2.18.04.6+esm1"
        },
        {
          "binary_name": "packagekit-tools",
          "binary_version": "1.1.9-1ubuntu2.18.04.6+esm1"
        }
      ]
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "packagekit",
      "purl": "pkg:deb/ubuntu/packagekit?arch=source&distro=esm-infra%2Ffocal",
      "ecosystem": "Ubuntu:Pro:20.04:LTS"
    },
    "versions": [
      "1.1.12-5ubuntu4",
      "1.1.13-1",
      "1.1.13-2",
      "1.1.13-2build1",
      "1.1.13-2ubuntu1",
      "1.1.13-2ubuntu1.1",
      "1.1.13-2ubuntu1.1+esm1"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19816.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "gir1.2-packagekitglib-1.0",
          "binary_version": "1.1.13-2ubuntu1.1+esm1"
        },
        {
          "binary_name": "gstreamer1.0-packagekit",
          "binary_version": "1.1.13-2ubuntu1.1+esm1"
        },
        {
          "binary_name": "libpackagekit-glib2-18",
          "binary_version": "1.1.13-2ubuntu1.1+esm1"
        },
        {
          "binary_name": "packagekit",
          "binary_version": "1.1.13-2ubuntu1.1+esm1"
        },
        {
          "binary_name": "packagekit-command-not-found",
          "binary_version": "1.1.13-2ubuntu1.1+esm1"
        },
        {
          "binary_name": "packagekit-docs",
          "binary_version": "1.1.13-2ubuntu1.1+esm1"
        },
        {
          "binary_name": "packagekit-gtk3-module",
          "binary_version": "1.1.13-2ubuntu1.1+esm1"
        },
        {
          "binary_name": "packagekit-tools",
          "binary_version": "1.1.13-2ubuntu1.1+esm1"
        }
      ]
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "packagekit",
      "purl": "pkg:deb/ubuntu/packagekit?arch=source&distro=jammy",
      "ecosystem": "Ubuntu:22.04:LTS"
    },
    "versions": [
      "1.2.2-2ubuntu3",
      "1.2.4-1ubuntu1",
      "1.2.4-1ubuntu2",
      "1.2.5-1ubuntu1",
      "1.2.5-2ubuntu1",
      "1.2.5-2ubuntu2",
      "1.2.5-2ubuntu3",
      "1.2.5-2ubuntu3.1"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19816.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "gir1.2-packagekitglib-1.0",
          "binary_version": "1.2.5-2ubuntu3.1"
        },
        {
          "binary_name": "gstreamer1.0-packagekit",
          "binary_version": "1.2.5-2ubuntu3.1"
        },
        {
          "binary_name": "libpackagekit-glib2-18",
          "binary_version": "1.2.5-2ubuntu3.1"
        },
        {
          "binary_name": "packagekit",
          "binary_version": "1.2.5-2ubuntu3.1"
        },
        {
          "binary_name": "packagekit-command-not-found",
          "binary_version": "1.2.5-2ubuntu3.1"
        },
        {
          "binary_name": "packagekit-docs",
          "binary_version": "1.2.5-2ubuntu3.1"
        },
        {
          "binary_name": "packagekit-gtk3-module",
          "binary_version": "1.2.5-2ubuntu3.1"
        },
        {
          "binary_name": "packagekit-tools",
          "binary_version": "1.2.5-2ubuntu3.1"
        }
      ]
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "packagekit",
      "purl": "pkg:deb/ubuntu/packagekit?arch=source&distro=noble",
      "ecosystem": "Ubuntu:24.04:LTS"
    },
    "versions": [
      "1.2.7-1",
      "1.2.8-1",
      "1.2.8-1build1",
      "1.2.8-2",
      "1.2.8-2build2",
      "1.2.8-2build3",
      "1.2.8-2ubuntu1",
      "1.2.8-2ubuntu1.1",
      "1.2.8-2ubuntu1.2",
      "1.2.8-2ubuntu1.4",
      "1.2.8-2ubuntu1.5"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19816.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "gir1.2-packagekitglib-1.0",
          "binary_version": "1.2.8-2ubuntu1.5"
        },
        {
          "binary_name": "gstreamer1.0-packagekit",
          "binary_version": "1.2.8-2ubuntu1.5"
        },
        {
          "binary_name": "libpackagekit-glib2-18",
          "binary_version": "1.2.8-2ubuntu1.5"
        },
        {
          "binary_name": "packagekit",
          "binary_version": "1.2.8-2ubuntu1.5"
        },
        {
          "binary_name": "packagekit-command-not-found",
          "binary_version": "1.2.8-2ubuntu1.5"
        },
        {
          "binary_name": "packagekit-docs",
          "binary_version": "1.2.8-2ubuntu1.5"
        },
        {
          "binary_name": "packagekit-gtk3-module",
          "binary_version": "1.2.8-2ubuntu1.5"
        },
        {
          "binary_name": "packagekit-tools",
          "binary_version": "1.2.8-2ubuntu1.5"
        }
      ]
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "packagekit",
      "purl": "pkg:deb/ubuntu/packagekit?arch=source&distro=resolute",
      "ecosystem": "Ubuntu:26.04:LTS"
    },
    "versions": [
      "1.3.1-1",
      "1.3.2-1",
      "1.3.3-1",
      "1.3.4-1",
      "1.3.4-3",
      "1.3.4-3ubuntu1",
      "1.3.4-3ubuntu1.1",
      "1.3.4-3ubuntu1.2"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19816.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "gir1.2-packagekitglib-1.0",
          "binary_version": "1.3.4-3ubuntu1.2"
        },
        {
          "binary_name": "gstreamer1.0-packagekit",
          "binary_version": "1.3.4-3ubuntu1.2"
        },
        {
          "binary_name": "libpackagekit-glib2-18",
          "binary_version": "1.3.4-3ubuntu1.2"
        },
        {
          "binary_name": "packagekit",
          "binary_version": "1.3.4-3ubuntu1.2"
        },
        {
          "binary_name": "packagekit-command-not-found",
          "binary_version": "1.3.4-3ubuntu1.2"
        },
        {
          "binary_name": "packagekit-docs",
          "binary_version": "1.3.4-3ubuntu1.2"
        },
        {
          "binary_name": "packagekit-gtk3-module",
          "binary_version": "1.3.4-3ubuntu1.2"
        }
      ]
    }
  }
]

Publisher severity

No explicit severity was provided.

Event: #14203 · Revision 1
Added to Heist Feed: Sun, 25 Oct 2026 00:37:47 GMT
Publisher date: Mon, 14 Sep 2026 20:16:00 GMT

Read the original announcement