CVE-2026-47729

{
  "id": "CVE-2026-47729",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-16T17:16:57.217",
  "lastModified": "2026-10-24T20:10:00.137",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Squid is a caching proxy for the Web. Prior to 7.6, due to an improper validation of syntactic correctness of input in the FTP gateway (src/clients/FtpGateway.cc), Squid is vulnerable to an out-of-bounds read: when a listing entry date in the TypeA or TypeB directory-listing formats is not followed by a filename, parsing was not restricted to the input buffer, so a trusted client accessing a misbehaving FTP server through Squid's gateway feature could read memory from random unrelated transactions. This issue is fixed in version 7.6."
    },
    {
      "lang": "es",
      "value": "Squid es un proxy de almacenamiento en caché para la Web. Antes de la versión 7.6, debido a una validación incorrecta de la corrección sintáctica de la entrada en la pasarela FTP (src/clients/FtpGateway.cc), Squid es vulnerable a una lectura fuera de límites: cuando una fecha de entrada de listado en los formatos de listado de directorio TypeA o TypeB no es seguida por un nombre de archivo, el análisis no estaba restringido al búfer de entrada, por lo que un cliente de confianza que accede a un servidor FTP con comportamiento anómalo a través de la característica de pasarela de Squid podría leer memoria de transacciones aleatorias no relacionadas. Este problema está solucionado en la versión 7.6."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "squid-cache",
          "product": "squid",
          "versions": [
            {
              "version": "< 7.6",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-16T17:52:23.166119Z",
          "id": "CVE-2026-47729",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        },
        {
          "lang": "en",
          "value": "CWE-1289"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "7.6",
              "matchCriteriaId": "D1EAA421-658A-4C10-A77B-EA9D38A3EFB8"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/squid-cache/squid/commit/865a131c7d557e68c965043d98c2eccae26deef8",
      "source": "[email protected]",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://github.com/squid-cache/squid/pull/2408",
      "source": "[email protected]",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://github.com/squid-cache/squid/pull/2409",
      "source": "[email protected]",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://github.com/squid-cache/squid/releases/tag/SQUID_7_6",
      "source": "[email protected]",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "https://github.com/squid-cache/squid/security/advisories/GHSA-8c37-pxjq-qwrg",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}