CVE-2026-73566

{
  "id": "CVE-2026-73566",
  "sourceIdentifier": "[email protected]",
  "published": "2026-08-13T18:18:19.250",
  "lastModified": "2026-10-24T15:10:00.190",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "node-tar is a tar archive manipulation library for Node.js. Prior to 7.5.21, node-tar's filesFilter in src/list.ts uses the recursive mapHas helper to walk an archive entry path upward with path.dirname() and no segment cap when tar.t(...) or tar.x(...) receives a non-empty member-selection list. A crafted GNU L or PAX x long-path header with thousands of slash-separated segments reaches this.filter(entry.path, entry) in Parser[CONSUMEHEADER] in src/parse.ts before Unpack[CHECKPATH] applies maxDepth, causing an uncatchable RangeError stack overflow that terminates asynchronous and streaming Node.js consumers. This issue is fixed in version 7.5.21."
    },
    {
      "lang": "es",
      "value": "node-tar es una biblioteca de manipulación de archivos tar para Node.js. Antes de la versión 7.5.21, el filesFilter de node-tar en src/list.ts utiliza la función auxiliar recursiva mapHas para recorrer una ruta de entrada de archivo hacia arriba con path.dirname() y sin límite de segmentos cuando tar.t(...) o tar.x(...) reciben una lista de selección de miembros no vacía. Una cabecera de ruta larga GNU L o PAX x manipulada con miles de segmentos separados por barras alcanza este.filter(entry.path, entry) en Parser[CONSUMEHEADER] en src/parse.ts antes de que Unpack[CHECKPATH] aplique maxDepth, causando un desbordamiento de pila de RangeError inatrapable que termina los consumidores asíncronos y de streaming de Node.js. Este problema está solucionado en la versión 7.5.21."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "isaacs",
          "product": "node-tar",
          "versions": [
            {
              "version": "< 7.5.21",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-18T01:27:38.757239Z",
          "id": "CVE-2026-73566",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        },
        {
          "lang": "en",
          "value": "CWE-674"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/isaacs/node-tar/commit/631ae59121bf8fc8a22bbae35f074cb9b789cd4a",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/isaacs/node-tar/security/advisories/GHSA-r292-9mhp-454m",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/isaacs/node-tar/security/advisories/GHSA-r292-9mhp-454m",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}