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4 vulnerabilities found for basic-ftp by patrickjuchli

CVE-2026-44240 (GCVE-0-2026-44240)

Vulnerability from cvelistv5 – Published: 2026-05-12 20:37 – Updated: 2026-05-14 12:31
VLAI?
Title
basic-ftp allows a malicious FTP server to cause client-side denial of service via unbounded multiline control response buffering
Summary
basic-ftp is an FTP client for Node.js. Prior to 5.3.1, basic-ftp is vulnerable to client-side denial of service when parsing FTP control-channel multiline responses. A malicious or compromised FTP server can send an unterminated multiline response during the initial FTP banner phase, before authentication. The client keeps appending attacker-controlled data into FtpContext._partialResponse and repeatedly reparses the accumulated buffer without enforcing a maximum control response size. As a result, an application using basic-ftp can remain stuck in connect() while memory and CPU usage grow under attacker-controlled input. This can lead to process-level denial of service, container OOM kills, worker restarts, queue backlog, or service degradation in applications that automatically connect to FTP endpoints. This vulnerability is fixed in 5.3.1.
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Vendor Product Version
patrickjuchli basic-ftp Affected: < 5.3.1
Create a notification for this product.
Show details on NVD website

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CVE-2026-41324 (GCVE-0-2026-41324)

Vulnerability from cvelistv5 – Published: 2026-04-24 03:28 – Updated: 2026-04-24 18:50
VLAI?
Title
basic-ftp vulnerable to denial of service via unbounded memory consumption in Client.list()
Summary
basic-ftp is an FTP client for Node.js. Versions prior to 5.3.0 are vulnerable to denial of service through unbounded memory growth while processing directory listings from a remote FTP server. A malicious or compromised server can send an extremely large or never-ending listing response to `Client.list()`, causing the client process to consume memory until it becomes unstable or crashes. Version 5.3.0 fixes the issue.
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Vendor Product Version
patrickjuchli basic-ftp Affected: < 5.3.0
Create a notification for this product.
Show details on NVD website

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CVE-2026-39983 (GCVE-0-2026-39983)

Vulnerability from cvelistv5 – Published: 2026-04-09 17:05 – Updated: 2026-06-30 12:08
VLAI?
Title
FTP Command Injection via CRLF in basic-ftp
Summary
basic-ftp is an FTP client for Node.js. Prior to 5.2.1, basic-ftp allows FTP command injection via CRLF sequences (\r\n) in file path parameters passed to high-level path APIs such as cd(), remove(), rename(), uploadFrom(), downloadTo(), list(), and removeDir(). The library's protectWhitespace() helper only handles leading spaces and returns other paths unchanged, while FtpContext.send() writes the resulting command string directly to the control socket with \r\n appended. This lets attacker-controlled path strings split one intended FTP command into multiple commands. This vulnerability is fixed in 5.2.1.
CWE
  • CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')
Assigner
Impacted products
Vendor Product Version
patrickjuchli basic-ftp Affected: < 5.2.1
Create a notification for this product.
Show details on NVD website

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CVE-2026-27699 (GCVE-0-2026-27699)

Vulnerability from cvelistv5 – Published: 2026-02-25 14:58 – Updated: 2026-02-27 17:04
VLAI?
Title
Basic FTP has Path Traversal Vulnerability in its downloadToDir() method
Summary
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()` method. 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.
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
Impacted products
Vendor Product Version
patrickjuchli basic-ftp Affected: < 5.2.0
Create a notification for this product.
Show details on NVD website

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          "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": "2026-02-27T17:04:33.751Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}