{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:huggingface:transformers:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "A594AA3C-AF4A-467C-B088-1E4519E0F74E",
              "versionEndExcluding": "4.48.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A Regular Expression Denial of Service (ReDoS) vulnerability was identified in the huggingface/transformers library, specifically in the file tokenization_nougat_fast.py. The vulnerability occurs in the post_process_single() function, where a regular expression processes specially crafted input. The issue stems from the regex exhibiting exponential time complexity under certain conditions, leading to excessive backtracking. This can result in significantly high CPU usage and potential application downtime, effectively creating a Denial of Service (DoS) scenario. The affected version is v4.46.3 (latest)."
    },
    {
      "lang": "es",
      "value": "Se identific\u00f3 una vulnerabilidad de denegaci\u00f3n de servicio por expresi\u00f3n regular (ReDoS) en la librer\u00eda huggingface/transformers, concretamente en el archivo tokenization_nougat_fast.py. La vulnerabilidad se produce en la funci\u00f3n post_process_single(), donde una expresi\u00f3n regular procesa una entrada especialmente manipulada. El problema se debe a que la expresi\u00f3n regular presenta una complejidad temporal exponencial en determinadas condiciones, lo que provoca un retroceso excesivo. Esto puede resultar en un uso de CPU significativamente alto y un posible tiempo de inactividad de la aplicaci\u00f3n, creando as\u00ed un escenario de denegaci\u00f3n de servicio (DoS). La versi\u00f3n afectada es la v4.46.3 (\u00faltima versi\u00f3n)."
    }
  ],
  "id": "CVE-2024-12720",
  "lastModified": "2025-08-01T21:11:26.963",
  "metrics": {
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "security@huntr.dev",
        "type": "Secondary"
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-03-20T10:15:29.507",
  "references": [
    {
      "source": "security@huntr.dev",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/huggingface/transformers/commit/deac971c469bcbb182c2e52da0b82fb3bf54cccf"
    },
    {
      "source": "security@huntr.dev",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://huntr.com/bounties/4bed1214-7835-4252-a853-22bbad891f98"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Vendor Advisory"
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      "url": "https://huntr.com/bounties/4bed1214-7835-4252-a853-22bbad891f98"
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  ],
  "sourceIdentifier": "security@huntr.dev",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-1333"
        }
      ],
      "source": "security@huntr.dev",
      "type": "Secondary"
    }
  ]
}