CVE-2026-32327

{
  "id": "CVE-2026-32327",
  "sourceIdentifier": "[email protected]",
  "published": "2026-08-06T15:16:54.190",
  "lastModified": "2026-10-24T16:10:00.153",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A bug in APR-util version 1.6.3 (and earlier) allows a stack recursion attack against any library consumer which parses XML from untrusted sources and uses the apr_xml_quote_elem() function.\n\nUsers are recommended to upgrade to version 1.6.4, which fixes this issue."
    },
    {
      "lang": "es",
      "value": "Un error en APR-util versión 1.6.3 (y anteriores) permite un ataque de recursión de pila contra cualquier consumidor de biblioteca que analiza XML de fuentes no confiables y utiliza la función apr_xml_quote_elem().\n\nSe recomienda a los usuarios actualizar a la versión 1.6.4, que corrige este problema."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache Portable Runtime Utility",
          "defaultStatus": "unaffected",
          "packageName": "APR-util",
          "versions": [
            {
              "version": "0",
              "lessThanOrEqual": "1.6.3",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
          "baseScore": 9.1,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.2
      }
    ],
    "ssvcV203": [
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        "ssvcData": {
          "timestamp": "2026-08-06T17:46:05.943190Z",
          "id": "CVE-2026-32327",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-674"
        }
      ]
    }
  ],
  "configurations": [
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          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
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              "versionEndExcluding": "1.6.4",
              "matchCriteriaId": "92873888-3F9F-45E0-930E-D06B5648DC2C"
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  ],
  "references": [
    {
      "url": "https://lists.apache.org/thread/hq27vj8yfno9tkwv0fpj6jksfzgxvth1",
      "source": "[email protected]",
      "tags": [
        "Mailing List",
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2026/08/06/9",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
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}