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rclone — security advisory

Type: advisorySources: OSVAdvisory ID: UBUNTU-CVE-2026-88016

rclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.75.1, when backend/local runs with --links, a source .rclonelink object can plant a symlink in the destination and later directory metadata is applied through that path. MkdirMetadata, writeMetadataToFile, and setTimes operate when Directory.translatedLink=false, so os.Chown, os.Chmod, os.Chtimes, and birth-time handling can bypass os.Root confinement and follow the symlink. An attacker controlling source contents can therefore apply selected ownership, permissions, modification times, or birth times to a file or directory outside the destination, with --metadata required for chmod and chown while modification time is applied by the normal directory workflow. This issue is fixed in version 1.75.1.

Products
rclone
Affected versions
1.36-3, 1.36-3ubuntu0.1, 1.36-3ubuntu0.2, 1.47.0+ex1-6, 1.47.0+ex1-7, 1.49.5-2, 1.49.5-3, 1.50.2-2, 1.50.2-2ubuntu0.1, 1.50.2-2ubuntu0.2, 1.50.2-2ubuntu0.2+esm1, 1.53.3-1, 1.53.3-2, 1.53.3-4, 1.53.3-4ubuntu1, 1.53.3-4ubuntu1.22.04.1, 1.53.3-4ubuntu1.22.04.2, 1.53.3-4ubuntu1.22.04.3, 1.53.3-4ubuntu1.22.04.3+esm1, 1.53.3-4ubuntu1.22.04.4, 1.53.3-4ubuntu1.22.04.4+esm1, 1.53.3-4ubuntu1.22.04.5, 1.53.3-4ubuntu1.22.04.5+esm1, 1.60.1+dfsg-2build1, 1.60.1+dfsg-3, 1.60.1+dfsg-3ubuntu0.24.04.1, 1.60.1+dfsg-3ubuntu0.24.04.2, 1.60.1+dfsg-3ubuntu0.24.04.3, 1.60.1+dfsg-3ubuntu0.24.04.4, 1.60.1+dfsg-3ubuntu0.24.04.4+esm1, 1.60.1+dfsg-3ubuntu0.24.04.5, 1.60.1+dfsg-3ubuntu0.24.04.5+esm1, 1.60.1+dfsg-3ubuntu0.24.04.6, 1.60.1+dfsg-3ubuntu0.24.04.6+esm1, 1.60.1+dfsg-4ubuntu2, 1.60.1+dfsg-4ubuntu3, 1.60.1+dfsg-4ubuntu3.1, 1.60.1+dfsg-4ubuntu3.1+esm1, 1.60.1+dfsg-4ubuntu3.2, 1.60.1+dfsg-4ubuntu3.2+esm1, 1.69.3+dfsg-3, 1.69.3+dfsg-3ubuntu1
Fixed versions
Not specified
CVEs
CVE-2026-88016
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 03:29 UTC · Revision 1

Source evidence

UBUNTU-CVE-2026-88016

core-osv · Original source

Published 10 Sept 2026, 16:18 UTC

rclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.75.1, when backend/local runs with --links, a source .rclonelink object can plant a symlink in the destination and later directory metadata is applied through that path. MkdirMetadata, writeMetadataToFile, and setTimes operate when Directory.translatedLink=false, so os.Chown, os.Chmod, os.Chtimes, and birth-time handling can bypass os.Root confinement and follow the symlink. An attacker controlling source contents can therefore apply selected ownership, permissions, modification times, or birth times to a file or directory outside the destination, with --metadata required for chmod and chown while modification time is applied by the normal directory workflow. This issue is fixed in version 1.75.1.

osv:UBUNTU-CVE-2026-88016

rclone

Fixed versions: Not specified

rclone

Fixed versions: Not specified

rclone

Fixed versions: Not specified

rclone

Fixed versions: Not specified

rclone

Fixed versions: Not specified

rclone

Fixed versions: Not specified

Complete source record
{
  "id": "d70370d5586410a079ec57be3fc5987cc4ea0ffa0231debaaa3d9ec9313c92e5",
  "url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-88016",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "UBUNTU-CVE-2026-88016",
    "summary": "rclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.75.1, when backend/local runs with --links, a source .rclonelink object can plant a symlink in the destination and later directory metadata is applied through that path. MkdirMetadata, writeMetadataToFile, and setTimes operate when Directory.translatedLink=false, so os.Chown, os.Chmod, os.Chtimes, and birth-time handling can bypass os.Root confinement and follow the symlink. An attacker controlling source contents can therefore apply selected ownership, permissions, modification times, or birth times to a file or directory outside the destination, with --metadata required for chmod and chown while modification time is applied by the normal directory workflow. This issue is fixed in version 1.75.1.",
    "evidence": "osv:UBUNTU-CVE-2026-88016",
    "products": [
      {
        "name": {
          "value": "rclone",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.36-3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.36-3ubuntu0.1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.36-3ubuntu0.2",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "rclone",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.47.0+ex1-6",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.47.0+ex1-7",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.49.5-2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.49.5-3",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.50.2-2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.50.2-2ubuntu0.1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.50.2-2ubuntu0.2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.50.2-2ubuntu0.2+esm1",
            "evidence": "/affected/1/versions"
          }
        ]
      },
      {
        "name": {
          "value": "rclone",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.53.3-1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1.53.3-2",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1.53.3-4",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1.53.3-4ubuntu1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1.53.3-4ubuntu1.22.04.1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1.53.3-4ubuntu1.22.04.2",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1.53.3-4ubuntu1.22.04.3",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1.53.3-4ubuntu1.22.04.3+esm1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1.53.3-4ubuntu1.22.04.4",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1.53.3-4ubuntu1.22.04.4+esm1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1.53.3-4ubuntu1.22.04.5",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1.53.3-4ubuntu1.22.04.5+esm1",
            "evidence": "/affected/2/versions"
          }
        ]
      },
      {
        "name": {
          "value": "rclone",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.60.1+dfsg-2build1",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "1.60.1+dfsg-3",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "1.60.1+dfsg-3ubuntu0.24.04.1",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "1.60.1+dfsg-3ubuntu0.24.04.2",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "1.60.1+dfsg-3ubuntu0.24.04.3",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "1.60.1+dfsg-3ubuntu0.24.04.4",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "1.60.1+dfsg-3ubuntu0.24.04.4+esm1",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "1.60.1+dfsg-3ubuntu0.24.04.5",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "1.60.1+dfsg-3ubuntu0.24.04.5+esm1",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "1.60.1+dfsg-3ubuntu0.24.04.6",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "1.60.1+dfsg-3ubuntu0.24.04.6+esm1",
            "evidence": "/affected/3/versions"
          }
        ]
      },
      {
        "name": {
          "value": "rclone",
          "evidence": "/affected/4/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.60.1+dfsg-4ubuntu3",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "1.69.3+dfsg-3",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "1.69.3+dfsg-3ubuntu1",
            "evidence": "/affected/4/versions"
          }
        ]
      },
      {
        "name": {
          "value": "rclone",
          "evidence": "/affected/5/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.60.1+dfsg-4ubuntu2",
            "evidence": "/affected/5/versions"
          },
          {
            "value": "1.60.1+dfsg-4ubuntu3",
            "evidence": "/affected/5/versions"
          },
          {
            "value": "1.60.1+dfsg-4ubuntu3.1",
            "evidence": "/affected/5/versions"
          },
          {
            "value": "1.60.1+dfsg-4ubuntu3.1+esm1",
            "evidence": "/affected/5/versions"
          },
          {
            "value": "1.60.1+dfsg-4ubuntu3.2",
            "evidence": "/affected/5/versions"
          },
          {
            "value": "1.60.1+dfsg-4ubuntu3.2+esm1",
            "evidence": "/affected/5/versions"
          }
        ]
      }
    ],
    "severity": "high",
    "structured": {
      "id": "UBUNTU-CVE-2026-88016",
      "aliases": [
        "UBUNTU-CVE-2026-88016"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:L"
        },
        {
          "type": "Ubuntu",
          "score": "medium"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "rclone",
            "purl": "pkg:deb/ubuntu/rclone?arch=source&distro=bionic",
            "ecosystem": "Ubuntu:18.04:LTS"
          },
          "versions": [
            "1.36-3",
            "1.36-3ubuntu0.1",
            "1.36-3ubuntu0.2"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88016.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "golang-github-ncw-rclone-dev",
                "binary_version": "1.36-3ubuntu0.2"
              },
              {
                "binary_name": "rclone",
                "binary_version": "1.36-3ubuntu0.2"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "rclone",
            "purl": "pkg:deb/ubuntu/rclone?arch=source&distro=esm-apps%2Ffocal",
            "ecosystem": "Ubuntu:Pro:20.04:LTS"
          },
          "versions": [
            "1.47.0+ex1-6",
            "1.47.0+ex1-7",
            "1.49.5-2",
            "1.49.5-3",
            "1.50.2-2",
            "1.50.2-2ubuntu0.1",
            "1.50.2-2ubuntu0.2",
            "1.50.2-2ubuntu0.2+esm1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88016.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "golang-github-rclone-rclone-dev",
                "binary_version": "1.50.2-2ubuntu0.2+esm1"
              },
              {
                "binary_name": "rclone",
                "binary_version": "1.50.2-2ubuntu0.2+esm1"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "rclone",
            "purl": "pkg:deb/ubuntu/rclone?arch=source&distro=esm-apps%2Fjammy",
            "ecosystem": "Ubuntu:Pro:22.04:LTS"
          },
          "versions": [
            "1.53.3-1",
            "1.53.3-2",
            "1.53.3-4",
            "1.53.3-4ubuntu1",
            "1.53.3-4ubuntu1.22.04.1",
            "1.53.3-4ubuntu1.22.04.2",
            "1.53.3-4ubuntu1.22.04.3",
            "1.53.3-4ubuntu1.22.04.3+esm1",
            "1.53.3-4ubuntu1.22.04.4",
            "1.53.3-4ubuntu1.22.04.4+esm1",
            "1.53.3-4ubuntu1.22.04.5",
            "1.53.3-4ubuntu1.22.04.5+esm1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88016.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "golang-github-rclone-rclone-dev",
                "binary_version": "1.53.3-4ubuntu1.22.04.5+esm1"
              },
              {
                "binary_name": "rclone",
                "binary_version": "1.53.3-4ubuntu1.22.04.5+esm1"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "rclone",
            "purl": "pkg:deb/ubuntu/rclone?arch=source&distro=esm-apps%2Fnoble",
            "ecosystem": "Ubuntu:Pro:24.04:LTS"
          },
          "versions": [
            "1.60.1+dfsg-2build1",
            "1.60.1+dfsg-3",
            "1.60.1+dfsg-3ubuntu0.24.04.1",
            "1.60.1+dfsg-3ubuntu0.24.04.2",
            "1.60.1+dfsg-3ubuntu0.24.04.3",
            "1.60.1+dfsg-3ubuntu0.24.04.4",
            "1.60.1+dfsg-3ubuntu0.24.04.4+esm1",
            "1.60.1+dfsg-3ubuntu0.24.04.5",
            "1.60.1+dfsg-3ubuntu0.24.04.5+esm1",
            "1.60.1+dfsg-3ubuntu0.24.04.6",
            "1.60.1+dfsg-3ubuntu0.24.04.6+esm1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88016.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "golang-github-rclone-rclone-dev",
                "binary_version": "1.60.1+dfsg-3ubuntu0.24.04.6+esm1"
              },
              {
                "binary_name": "rclone",
                "binary_version": "1.60.1+dfsg-3ubuntu0.24.04.6+esm1"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "rclone",
            "purl": "pkg:deb/ubuntu/rclone?arch=source&distro=stonking",
            "ecosystem": "Ubuntu:26.10"
          },
          "versions": [
            "1.60.1+dfsg-4ubuntu3",
            "1.69.3+dfsg-3",
            "1.69.3+dfsg-3ubuntu1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88016.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "golang-github-rclone-rclone-dev",
                "binary_version": "1.69.3+dfsg-3ubuntu1"
              },
              {
                "binary_name": "rclone",
                "binary_version": "1.69.3+dfsg-3ubuntu1"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "rclone",
            "purl": "pkg:deb/ubuntu/rclone?arch=source&distro=esm-apps%2Fresolute",
            "ecosystem": "Ubuntu:Pro:26.04:LTS"
          },
          "versions": [
            "1.60.1+dfsg-4ubuntu2",
            "1.60.1+dfsg-4ubuntu3",
            "1.60.1+dfsg-4ubuntu3.1",
            "1.60.1+dfsg-4ubuntu3.1+esm1",
            "1.60.1+dfsg-4ubuntu3.2",
            "1.60.1+dfsg-4ubuntu3.2+esm1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88016.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "golang-github-rclone-rclone-dev",
                "binary_version": "1.60.1+dfsg-4ubuntu3.2+esm1"
              },
              {
                "binary_name": "rclone",
                "binary_version": "1.60.1+dfsg-4ubuntu3.2+esm1"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-17T13:01:15.025966184Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-88016"
      ],
      "references": [
        "https://ubuntu.com/security/CVE-2026-88016",
        "https://www.cve.org/CVERecord?id=CVE-2026-88016",
        "https://github.com/rclone/rclone/security/advisories/GHSA-f8g7-2xjc-7mfh"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-88016",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 361375,
  "published_at": "2026-09-10T16:18:00+00:00"
}