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CVE-2022-23514

Estado: ModificadaAlta (7.5)—

Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. Loofah < 2.19.1 contains an inefficient regular expression that is susceptible to excessive backtracking when attempting to sanitize certain SVG attributes. This may lead to a denial of service through CPU resource consumption. This issue is patched in version 2.19.1.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Loofah Project — Loofah

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2022-23514",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-23514",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-04-21T14:49:18.392624Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
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          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
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  "affected": [
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      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "flavorjones",
          "product": "loofah",
          "versions": [
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  "published": "2022-12-14T14:15:10.477",
  "references": [
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      "url": "https://github.com/flavorjones/loofah/security/advisories/GHSA-486f-hjj9-9vhh",
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      "source": "security-advisories@github.com"
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    {
      "url": "https://lists.debian.org/debian-lts-announce/2023/09/msg00011.html",
      "source": "security-advisories@github.com"
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    {
      "url": "https://github.com/flavorjones/loofah/security/advisories/GHSA-486f-hjj9-9vhh",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "url": "https://lists.debian.org/debian-lts-announce/2024/09/msg00044.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
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          "lang": "en",
          "value": "CWE-1333"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. Loofah < 2.19.1 contains an inefficient regular expression that is susceptible to excessive backtracking when attempting to sanitize certain SVG attributes. This may lead to a denial of service through CPU resource consumption. This issue is patched in version 2.19.1."
    },
    {
      "lang": "es",
      "value": "Loofah es una librería general para manipular y transformar documentos y fragmentos HTML / XML, construida sobre Nokogiri. Loofah &lt; 2.19.1 contiene una expresión regular ineficiente que es susceptible a un retroceso excesivo al intentar sanitizar ciertos atributos SVG. Esto puede provocar una denegación de servicio a través del consumo de recursos de CPU. Este problema está parcheado en la versión 2.19.1."
    }
  ],
  "lastModified": "2026-06-17T04:30:16.610",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:loofah_project:loofah:*:*:*:*:*:ruby:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F02BB26C-B491-429A-947C-D0582D90D5B2",
              "versionEndExcluding": "2.19.1"
            }
          ],
          "operator": "OR"
        }
      ]
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  "sourceIdentifier": "security-advisories@github.com"
}