{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "basic-ftp",
          "vendor": "patrickjuchli",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 5.2.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The `basic-ftp` FTP client library for Node.js contains a path traversal vulnerability (CWE-22) in versions prior to 5.2.0 in the `downloadToDir()`\u00a0method. A malicious FTP server can send directory listings with filenames containing path traversal sequences (`../`) that cause files to be written outside the intended download directory. Version 5.2.0 patches the issue."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-25T14:58:56.815Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/patrickjuchli/basic-ftp/security/advisories/GHSA-5rq4-664w-9x2c",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/patrickjuchli/basic-ftp/security/advisories/GHSA-5rq4-664w-9x2c"
        },
        {
          "name": "https://github.com/patrickjuchli/basic-ftp/commit/2a2a0e6514357b9eda07c2f8afbd3f04727a7cd9",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/patrickjuchli/basic-ftp/commit/2a2a0e6514357b9eda07c2f8afbd3f04727a7cd9"
        },
        {
          "name": "https://github.com/patrickjuchli/basic-ftp/releases/tag/v5.2.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/patrickjuchli/basic-ftp/releases/tag/v5.2.0"
        }
      ],
      "source": {
        "advisory": "GHSA-5rq4-664w-9x2c",
        "discovery": "UNKNOWN"
      },
      "title": "Basic FTP has Path Traversal Vulnerability in its downloadToDir() method"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-27699",
    "datePublished": "2026-02-25T14:58:56.815Z",
    "dateReserved": "2026-02-23T17:56:51.202Z",
    "dateUpdated": "2026-02-25T14:58:56.815Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-27699\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-02-25T15:20:53.523\",\"lastModified\":\"2026-02-25T15:22:44.317\",\"vulnStatus\":\"Undergoing Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The `basic-ftp` FTP client library for Node.js contains a path traversal vulnerability (CWE-22) in versions prior to 5.2.0 in the `downloadToDir()`\u00a0method. A malicious FTP server can send directory listings with filenames containing path traversal sequences (`../`) that cause files to be written outside the intended download directory. Version 5.2.0 patches the issue.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H\",\"baseScore\":9.1,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.2}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-22\"}]}],\"references\":[{\"url\":\"https://github.com/patrickjuchli/basic-ftp/commit/2a2a0e6514357b9eda07c2f8afbd3f04727a7cd9\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/patrickjuchli/basic-ftp/releases/tag/v5.2.0\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/patrickjuchli/basic-ftp/security/advisories/GHSA-5rq4-664w-9x2c\",\"source\":\"security-advisories@github.com\"}]}}"
  }
}