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kdenlive, mlt vulnerability

Type: advisorySource: OSV1 source record

It was discovered that Kdenlive allowed dangerous proxy parameters when processing attacker-controlled project files. An attacker could use this to execute arbitrary commands via the MLT framework's ante/post consumer properties.

Announced Group revision 1
Original source ↗

USN-8856-1

Primary source · Revision 1

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

Security context

Source reference: osv:USN-8856-1

kdenlive

Source reference: /affected/0/package/name

Affected versions
4:25.08.1-0ubuntu1

Source reference: /affected/0/versions

4:25.08.2-0ubuntu1

Source reference: /affected/0/versions

4:25.08.3-0ubuntu1

Source reference: /affected/0/versions

4:25.11.80-0ubuntu1

Source reference: /affected/0/versions

4:25.11.90-0ubuntu1

Source reference: /affected/0/versions

4:25.12.0-0ubuntu1

Source reference: /affected/0/versions

4:25.12.0-0ubuntu2

Source reference: /affected/0/versions

4:25.12.1-0ubuntu1

Source reference: /affected/0/versions

4:25.12.1-0ubuntu2

Source reference: /affected/0/versions

4:25.12.2-0ubuntu1

Source reference: /affected/0/versions

4:25.12.3-0ubuntu1

Source reference: /affected/0/versions

Fixed versions
4:25.12.3-0ubuntu1.1

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

mlt

Source reference: /affected/1/package/name

Affected versions
7.32.0-1

Source reference: /affected/1/versions

7.34.0-1

Source reference: /affected/1/versions

7.34.1+realtar-0ubuntu1

Source reference: /affected/1/versions

7.34.1+realtar-0ubuntu2

Source reference: /affected/1/versions

7.36.1-1ubuntu1

Source reference: /affected/1/versions

7.36.1-1ubuntu2

Source reference: /affected/1/versions

7.36.1-1ubuntu3

Source reference: /affected/1/versions

Fixed versions
7.36.1-1ubuntu3.1

Source reference: /affected/1/ranges

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"
          },
          {
            "fixed": "4:25.12.3-0ubuntu1.1"
          }
        ]
      }
    ],
    "package": {
      "name": "kdenlive",
      "purl": "pkg:deb/ubuntu/kdenlive?arch=source&distro=resolute",
      "ecosystem": "Ubuntu:26.04:LTS"
    },
    "versions": [
      "4:25.08.1-0ubuntu1",
      "4:25.08.2-0ubuntu1",
      "4:25.08.3-0ubuntu1",
      "4:25.11.80-0ubuntu1",
      "4:25.11.90-0ubuntu1",
      "4:25.12.0-0ubuntu1",
      "4:25.12.0-0ubuntu2",
      "4:25.12.1-0ubuntu1",
      "4:25.12.1-0ubuntu2",
      "4:25.12.2-0ubuntu1",
      "4:25.12.3-0ubuntu1"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8856-1.json",
      "cves_map": {
        "cves": [
          {
            "id": "CVE-2026-45184",
            "severity": [
              {
                "type": "CVSS_V3",
                "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L"
              },
              {
                "type": "Ubuntu",
                "score": "medium"
              }
            ]
          }
        ],
        "ecosystem": "Ubuntu:26.04:LTS"
      }
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "kdenlive",
          "binary_version": "4:25.12.3-0ubuntu1.1"
        },
        {
          "binary_name": "kdenlive-data",
          "binary_version": "4:25.12.3-0ubuntu1.1"
        }
      ],
      "availability": "No subscription required"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "7.36.1-1ubuntu3.1"
          }
        ]
      }
    ],
    "package": {
      "name": "mlt",
      "purl": "pkg:deb/ubuntu/mlt?arch=source&distro=resolute",
      "ecosystem": "Ubuntu:26.04:LTS"
    },
    "versions": [
      "7.32.0-1",
      "7.34.0-1",
      "7.34.1+realtar-0ubuntu1",
      "7.34.1+realtar-0ubuntu2",
      "7.36.1-1ubuntu1",
      "7.36.1-1ubuntu2",
      "7.36.1-1ubuntu3"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8856-1.json",
      "cves_map": {
        "cves": [
          {
            "id": "CVE-2026-45184",
            "severity": [
              {
                "type": "CVSS_V3",
                "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L"
              },
              {
                "type": "Ubuntu",
                "score": "medium"
              }
            ]
          }
        ],
        "ecosystem": "Ubuntu:26.04:LTS"
      }
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "libmlt++7",
          "binary_version": "7.36.1-1ubuntu3.1"
        },
        {
          "binary_name": "libmlt-data",
          "binary_version": "7.36.1-1ubuntu3.1"
        },
        {
          "binary_name": "libmlt7",
          "binary_version": "7.36.1-1ubuntu3.1"
        },
        {
          "binary_name": "melt",
          "binary_version": "7.36.1-1ubuntu3.1"
        },
        {
          "binary_name": "python3-mlt",
          "binary_version": "7.36.1-1ubuntu3.1"
        }
      ],
      "availability": "No subscription required"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#51980 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. USN-8856-1 · Revision 1Source updated