ubuntu-cve-2025-9670
Vulnerability from osv_ubuntu
Published
2025-08-29 19:15
Modified
2026-05-20 15:16
Summary
Details

A security flaw has been discovered in mixmark-io turndown up to 7.2.1. This affects an unknown function of the file src/commonmark-rules.js. Performing manipulation results in inefficient regular expression complexity. It is possible to initiate the attack remotely. The exploit has been released to the public and may be exploited.

Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
5.5 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "node-turndown",
            "binary_version": "7.1.1-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "node-turndown",
        "purl": "pkg:deb/ubuntu/node-turndown@7.1.1-2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "7.1.1-1",
        "7.1.1-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "node-turndown",
            "binary_version": "7.1.1-3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "node-turndown",
        "purl": "pkg:deb/ubuntu/node-turndown@7.1.1-3?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "7.1.1-3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "node-turndown",
            "binary_version": "7.1.1-3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "node-turndown",
        "purl": "pkg:deb/ubuntu/node-turndown@7.1.1-3?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "7.1.1-3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "node-turndown",
            "binary_version": "7.2.2+~2.2.0~git20240406-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "node-turndown",
        "purl": "pkg:deb/ubuntu/node-turndown@7.2.2+~2.2.0~git20240406-2?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "7.1.1-3",
        "7.2.2+~2.2.0~git20240406-2"
      ]
    }
  ],
  "aliases": [],
  "details": "A security flaw has been discovered in mixmark-io turndown up to 7.2.1. This affects an unknown function of the file src/commonmark-rules.js. Performing manipulation results in inefficient regular expression complexity. It is possible to initiate the attack remotely. The exploit has been released to the public and may be exploited.",
  "id": "UBUNTU-CVE-2025-9670",
  "modified": "2026-05-20T15:16:00Z",
  "published": "2025-08-29T19:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-9670"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-9670"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/mixmark-io/turndown/issues/501"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/mixmark-io/turndown/issues/501#issue-3336342088"
    },
    {
      "type": "REPORT",
      "url": "https://vuldb.com/?ctiid.321880"
    },
    {
      "type": "REPORT",
      "url": "https://vuldb.com/?id.321880"
    },
    {
      "type": "REPORT",
      "url": "https://vuldb.com/?submit.637911"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2025-9670"
  ]
}



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