{
  "affected": [
    {
      "affectedData": [
        {
          "product": "pnpm",
          "vendor": "pnpm",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 10.28.1"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:pnpm:pnpm:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "5AFF60E6-D1CC-46A7-9122-988E9B68D1B9",
              "versionEndExcluding": "10.28.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "pnpm is a package manager. Prior to version 10.28.1, a path traversal vulnerability in pnpm\u0027s 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\u0027s `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 versi\u00f3n 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 extracci\u00f3n previsto. La vulnerabilidad tiene dos vectores de ataque: (1) Entradas ZIP maliciosas que contienen \u0027../\u0027 o rutas absolutas que escapan de la ra\u00edz de extracci\u00f3n a trav\u00e9s de \u0027extractAllTo\u0027 de AdmZip, y (2) El campo \u0027BinaryResolution.prefix\u0027 se concatena en la ruta de extracci\u00f3n sin validaci\u00f3n, permitiendo que un prefijo manipulado como \u0027../../evil\u0027 redirija los archivos extra\u00eddos fuera de \u0027targetDir\u0027. 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 tuber\u00edas CI/CD que auto-instalan dependencias binarias. Puede llevar a la sobrescritura de archivos de configuraci\u00f3n, scripts u otros archivos sensibles, lo que lleva a RCE. La versi\u00f3n 10.28.1 contiene un parche."
    }
  ],
  "id": "CVE-2026-23888",
  "lastModified": "2026-06-17T10:22:15.717",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-23888",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-01-27T21:40:56.936224Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-01-26T22:15:56.047",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/pnpm/pnpm/commit/5c382f0ca3b7cc49963b94677426e66539dcb3f5"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes"
      ],
      "url": "https://github.com/pnpm/pnpm/releases/tag/v10.28.1"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://github.com/pnpm/pnpm/security/advisories/GHSA-6pfh-p556-v868"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        },
        {
          "lang": "en",
          "value": "CWE-23"
        },
        {
          "lang": "en",
          "value": "CWE-426"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}