fkie_cve-2025-46656
Vulnerability from fkie_nvd
Published
2025-04-26 22:15
Modified
2025-10-16 20:24
Severity ?
2.9 (Low) - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
3.3 (Low) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Summary
python-markdownify (aka markdownify) before 0.14.1 allows large headline prefixes such as <h9999999> in addition to <h1> through <h6>. This causes memory consumption.
References
cve@mitre.orghttps://github.com/matthewwithanm/python-markdownify/compare/0.14.0...0.14.1Patch
cve@mitre.orghttps://github.com/matthewwithanm/python-markdownify/issues/143Exploit
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/matthewwithanm/python-markdownify/issues/143Exploit
Impacted products
Vendor Product Version
matthewwithanm markdownify *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:matthewwithanm:markdownify:*:*:*:*:*:python:*:*",
              "matchCriteriaId": "802C658E-086C-44F4-8952-A4CFEBD3EEC2",
              "versionEndExcluding": "0.14.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "python-markdownify (aka markdownify) before 0.14.1 allows large headline prefixes such as \u003ch9999999\u003e in addition to \u003ch1\u003e through \u003ch6\u003e. This causes memory consumption."
    },
    {
      "lang": "es",
      "value": "La versi\u00f3n 0.14.1 de Python-markdownify (tambi\u00e9n conocida como markdownify) permite prefijos de encabezado largos, como , adem\u00e1s de los prefijos  a . Esto consume memoria."
    }
  ],
  "id": "CVE-2025-46656",
  "lastModified": "2025-10-16T20:24:26.727",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "LOW",
          "baseScore": 2.9,
          "baseSeverity": "LOW",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 1.4,
        "impactScore": 1.4,
        "source": "cve@mitre.org",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "LOW",
          "baseScore": 3.3,
          "baseSeverity": "LOW",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-04-26T22:15:17.260",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/matthewwithanm/python-markdownify/compare/0.14.0...0.14.1"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit"
      ],
      "url": "https://github.com/matthewwithanm/python-markdownify/issues/143"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Exploit"
      ],
      "url": "https://github.com/matthewwithanm/python-markdownify/issues/143"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-1284"
        }
      ],
      "source": "cve@mitre.org",
      "type": "Secondary"
    }
  ]
}


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