CVE-2026-23888

{
  "id": "CVE-2026-23888",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-23888",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-01-27T21:40:56.936224Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "pnpm",
          "product": "pnpm",
          "versions": [
            {
              "status": "affected",
              "version": "< 10.28.1"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-01-26T22:15:56.047",
  "references": [
    {
      "url": "https://github.com/pnpm/pnpm/commit/5c382f0ca3b7cc49963b94677426e66539dcb3f5",
      "tags": [
        "Patch"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/pnpm/pnpm/releases/tag/v10.28.1",
      "tags": [
        "Release Notes"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/pnpm/pnpm/security/advisories/GHSA-6pfh-p556-v868",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        },
        {
          "lang": "en",
          "value": "CWE-23"
        },
        {
          "lang": "en",
          "value": "CWE-426"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "pnpm is a package manager. Prior to version 10.28.1, a path traversal vulnerability in pnpm's binary fetcher allows malicious packages to write files outside the intended extraction directory. The vulnerability has two attack vectors: (1) Malicious ZIP entries containing `../` or absolute paths that escape the extraction root via AdmZip's `extractAllTo`, and (2) The `BinaryResolution.prefix` field is concatenated into the extraction path without validation, allowing a crafted prefix like `../../evil` to redirect extracted files outside `targetDir`. The issue impacts all pnpm users who install packages with binary assets, users who configure custom Node.js binary locations and CI/CD pipelines that auto-install binary dependencies. It can lead to overwriting config files, scripts, or other sensitive files leading to RCE. Version 10.28.1 contains a patch."
    },
    {
      "lang": "es",
      "value": "pnpm es un gestor de paquetes. Antes de la versión 10.28.1, una vulnerabilidad de salto de ruta en el recuperador de binarios de pnpm permite a paquetes maliciosos escribir archivos fuera del directorio de extracción previsto. La vulnerabilidad tiene dos vectores de ataque: (1) Entradas ZIP maliciosas que contienen '../' o rutas absolutas que escapan de la raíz de extracción a través de 'extractAllTo' de AdmZip, y (2) El campo 'BinaryResolution.prefix' se concatena en la ruta de extracción sin validación, permitiendo que un prefijo manipulado como '../../evil' redirija los archivos extraídos fuera de 'targetDir'. El problema afecta a todos los usuarios de pnpm que instalan paquetes con activos binarios, a los usuarios que configuran ubicaciones de binarios de Node.js personalizadas y a las tuberías CI/CD que auto-instalan dependencias binarias. Puede llevar a la sobrescritura de archivos de configuración, scripts u otros archivos sensibles, lo que lleva a RCE. La versión 10.28.1 contiene un parche."
    }
  ],
  "lastModified": "2026-06-17T10:22:15.717",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:pnpm:pnpm:*:*:*:*:*:node.js:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5AFF60E6-D1CC-46A7-9122-988E9B68D1B9",
              "versionEndExcluding": "10.28.1"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security-advisories@github.com"
}