Vulnerability from bitnami_vulndb
Published
2026-08-17 05:53
Modified
2026-08-17 06:10
Summary
rclone: FTP Command Arguments Permit CRLF Injection When Custom Encoding Preserves Newlines
Details

rclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.75.0, a valid but nondefault FTP filename encoding in backend/ftp/ftp.go can restore raw CR/LF immediately before an attacker-controlled path is interpolated into the line-oriented FTP control channel, and github.com/jlaffaye/ftp formats the argument through textproto.Conn.Cmd without rejecting CR or LF, allowing a filename such as victim CRLF DELE other-secret CRLF NOOP to inject an independent authenticated FTP command when the victim copies or syncs to a more-privileged FTP destination. This issue is fixed in 1.75.0.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "rclone",
        "purl": "pkg:bitnami/rclone"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.75.0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:H",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-71311"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:rclone:rclone:*:*:*:*:*:go:*:*"
    ],
    "severity": "Medium"
  },
  "details": "rclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.75.0, a valid but nondefault FTP filename encoding in backend/ftp/ftp.go can restore raw CR/LF immediately before an attacker-controlled path is interpolated into the line-oriented FTP control channel, and github.com/jlaffaye/ftp formats the argument through textproto.Conn.Cmd without rejecting CR or LF, allowing a filename such as victim CRLF DELE other-secret CRLF NOOP to inject an independent authenticated FTP command when the victim copies or syncs to a more-privileged FTP destination. This issue is fixed in 1.75.0.",
  "id": "BIT-rclone-2026-71311",
  "modified": "2026-08-17T06:10:32.268Z",
  "published": "2026-08-17T05:53:32.594Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/rclone/rclone/commit/1df2b70753286c1dfe8366078cbedfdf7f96472c"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rclone/rclone/releases/tag/v1.75.0"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rclone/rclone/security/advisories/GHSA-8c48-q9wj-3w37"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-71311"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "rclone: FTP Command Arguments Permit CRLF Injection When Custom Encoding Preserves Newlines"
}



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